-------
e_n
TABLE 24. RATES OF DISCHARGE AND EFFICIENCY OF DESTRUCTION
FOR NAPHTHALENE AND PHENOL
Test 2
Test 3
Test 4
Naphthalene
Phenol
Solid rate
Naphthalene
Phenol
Sol;d rate
Naphthalene
Phenol
Sol id rate
Feed
(g/sec)
0.10
0.10
79
0.08
0.08
79
0.05
0.11
79
Bottom ash
(g/sec)
<5 x
<5 x
<5
<9 >
<4 x
<5
<4.8
<3 x
<5
io-5
10-7
io-5
10-6
x 10-5
IO'6
Mech. hop.
(g/sec)
a x lo-J
<\ x IO-6
<10
<1.7 x IO-4
<1 x ID'6
<10
<2.2 x IO-5
<1 x ID"6
<10
Baghouse
(g/sec)
<5 x ID'5
<2.5 x 10-9
<5
<1.9 x 1Q~6
<1 x 10'6
<5
<2.5 x 10"5
<1.5 x 1Q-6
<5
Gas
(g/sec)
3.9 x IO--1
2.9 x 10~5
(6.85)*
1 x IO-3
a. 9 x io-5
(6.65)*
1.1 x IO-3
1.6 r IO-5
(7.0)*
Total out
(g/sec)
3.9 x IO-3
2.9 x lO'5
1 x IO-3
<2 x IO-5
1.1 x ID"3
1.6 x IO-5
Efficiency
(percent)
96.1
99.97
98.7
>99.99
97.8
99.99
Assumptions: Feed rate, all cases = 79 g/sec sludge; ash quantity is 5 g/sec total, but some unburned
en organics were observed in the mechanical hopper thus <10g it used.
*Sm3/sec (23°C and 1 atm)
-------
indestructable material as tracers. Upon observation of data in Table 23, it
is apparent that the partition of various metals into each ash component
(bottom, hopper, baghouse) is dependent on the species, not the ash collecting
component. In addition the large amount of metal component contributed by
either the wood or sludge added a compounding complication to tracer analysis.
Only two organic compounds were detected in the stack emissions. The
mass balance and destruction efficiency for these compounds were developed as
follows:
Measured rates were available for the feed and stack gas
emissions. The feed rate was 72 I/sec with a density of 1.1 g/ml
or 79 (range 66 to 99) g/sec. The gas volume ranged from 6.85 to
6.99 sm3/sec (23°C and 1 ata). The exhaust gas particulate
material was below detectable levels (<10~3 g/sm^ or <10~^
g/sec), so solids in the gas stream were negligible.
e Rates for the three ash streams were not directly measurable;
alternately the effect on mass balances was determined for maximum
values based on the total ash generated. Total ash was calculated
from the feed wood and sludge added. Ash composes 0.30 percent of
Douglas-fir wood and 0.55 percent of Douglas-fir bark. Wood
without bark was fed during the boiler test sequence. Based on
1,550 g/sec of wet wood and 79 g/sec sludge, the ash was calculated
to be 5 g/sec. The mechanical hopper was observea to contain some
unburned char thus a higher total quantity was assumed
conservatively at lOg. Since the phenol and naphthalene losses
that could occur through these ash amounts were too small to affect
the destruction efficiency, their calculation provided an
informative maximum.
Using these calculated rates, the mass flowrates of naphthalene and
phenol (the only observed organic emissions) were derived and are presented in
Table 24. The destruction efficiency also is presented, as calculated from
the equation:
Rf Cf,j - R> C
E = x 100
where
Rf = feed rate of sludge
Cf-j = concentration of jtncomponent in the feed
R-j = rate of discharge of itn stream
C] ; = concentration of jt" component in i'-'1 stream
Percent destruction of the two organic components of the sludge range
from 96+ to >99.99 percent. These rates are the 1owest values for any of the
16 organic constituents analyzed for in the stacK gas. In fact, with the
exception of naphthalene, all components were destroyed to 99.99 percent
57
-------
completion. The high stack value of naphthalene appears an oddity considering
other component similarity in feed concentration and time-temperature
requirements for destruction. Naphthalene contamination in other sample
containers (discarded) is documented in Appendix C.
Table 25 compares the content of the raw creosote, the working penta
solution, the sludge wastewater, and the fuel (sludge and wood chips) for
represftntati 'e compounds. Although incineration fuel is similar in relative
proportion to the starting preservative solutions, the variations in relative
quantities cf compounds in sludge and penta are indicative of too few samples
to provide precise values. The major changes through fie process are
dilution, first with watjr and then with wood chips.
As shown in the data tables, the ash samples contained ppm quantities
of polynuclear aromatics. Whether these arise from unburned fuel or by
partial combustion is not known. The absence of phenols in the bottom ash is
evidence in favor of the latter hypothesis. Only ne.phthalene nnd low levels
of phenols were detected in the XAD-2 cartridge samples; naphthalene was
consistently detected. For further information see chromatograrns in
Appendix C.
To summarize, the incineration process gives rise to very low or
undetectable levels of airborne volatile pollutants. The bottom ash from this
process uoes contain significant concentrations of uncombusted material.
Section 8 discusses analysis of plant C samples for chlorinated dioxins
and furans.
TABLE 25. SELECTED COMPONENTS IN WOOD PRESERVATIVE
SOLUTIONS AND INCINERATION FUEL
Concentration ng/g
Compound
Creosote Penta Sludge Fuel
Phenol
Naphthalene
Penta
Phenanthrene
Toluene
8,000
1,700
1,700
37,000
1,401'
4.00U
660
16,000
1,200
NA
1,200
900
250
850
8
12
18
. 15
18
NA
58
-------
SECTION 8
CHARACTERIZATION OF CHLORODIBENZOFURANS AND CHLORODIBENZODIOXINS
DISCHARGED FROM A BOILER CO-FIRING WOOD PRESERVING WASTES
The existence of dioxins and furans in combustion ash and wood
preserving waste is well documented(2,6). Thus, as an effort to quantify
the amount of these compounds in emissions or residues from the co-firing of
wood and preserving waste sludge, analyses of the wastes, exhaust gas and
three ash components was accomplished. Results of these analyses with input
from three different laboratories are presented in this section along with a
brief discussion of procedures used.
8.1 FURAN AND DIOXIN ANALYSIS OF STACK GAS, WASTE, AND ASH
Samples utilized in the chlorodibenzofuran (CDF) and
chlorodibenzodioxin (CDD) analysis were the samples identified in Section 7.
Abbreviations for various chlorinated homologs are listed in Table 26 along
with the possible number of isomers of each. The analytical results of CDF
and CDD are presented in Tables 27 to 32.
No CDFs or CDDs were detected in the air emissions. The detection
limits were <10 ug/m^ (lo ppt w/v).
Both CDFs and CDDs were found in the treating penta solution, waste
sludge and the ash. Although these materials were defected, the quantity
measured was not consistent and depended or. the analyzing laboratory's
procedures.
Ash sludge and penta in oil samples were analyzed by multiple
laboratories using split samples. Tables 27 to 29 report values for Lab A
while Table 32 reports resuUs for Labs A, B and C. To better understand the
values presented, ths, sample preparation procedures are compared in Table 33.
Also it should be seated that the recovery reported by the three labs is quite
different, varying between less than 40 percent and over 130 percent. Spike
and recovery data for Labs A and B are given in Appendix C. Recovery for
Lab C was reported as 50 to 80 percent but not documented during analysis.
For each of the listed homologs of CCD and CDF, typically only a single
isomer was available for calibration. The total number of isomers was deduced
by comparing the (JC/MS properties of the standard to those unknown compounds
exhibiting similar properties. However, since not all isomers of a given
group were available for calibrating retention times, a given mass
59
-------
TABLE 26. SUMMARY OF ABBREVIATIONS FC.i CHLORODIBENZOHJRAN
AND CHLORODIBflNZOLJlOXlNS
Abbrevi ations
MCDF
DCDF
TrCOf
TCDF
PCDF
HxCDF
HpCDF
OCDF
MCDD
DCDD
TrCDD
TCDD
PCDD
HxCOD
HpCDD
OCDD
Name
Monochlorodiben?cfuran
Dichlorodibenzofuran
Trichlorodibenzofuran
Tetrachlorodibenzofuran
Pentachlorodibenzofuran
Hexachlorodibenzof uran
Heptachlorodibenzofuran
Octachlorodihenzofuran
Monochlorodibenzodioxin
Dichlorodibenzodioxin
Trichlorodibenzodioxin
Tetrachlorod'ibenzodioxin
Pentachlorodibenzodioxin
Hexachlorodibenzodioxin
Heptachlorodibenzodioxin
Octachlorodibenzodioxin
Possible isomers
i\
16
28
38
28
16
4
1
2
10
14
c'2
in
10
2
1
60
-------
TABLE 27. CHLORODIBENZOFURAN AND CHLORODIBENZOOJOXIN ANALYTICAL RESULTS
FOR TREATMENT OIL (4.5 PERCENT PENTA IN OIL) LABS A AND B
Monomer
of COD
or COF*
MCDF
DCDF
TrCDF
TCDF
PCDF
HxCDF
HpCDF
OCDF
MCOD
DCDD
TrCDD
TCDD
PCDD
HxCDO
Hp-CDD
OCDD
Total
number of
apparent isomers**
4
2
4
5
5
5
2
1
2
2
2
NR
6
4
2
1
Total detected***
(ng/g)
2 (180)+
2 (1800)
10 (ND)
18 (ND)
140 (920)
1800 (2700)
114 (3100)
710 (4660)
1.5 (i)
2 (i)
3.5 (i)
1.1 (i)
33 (i)
570 (1,540)
260 (17,100)
4000 (>17,000)
Minimum
detectable
concentration
(ng/g)
0.4
0.8
1.2
0.1
1
1
1
3
0.4
0.8
1.2
0.5
0.3
1
1
3
*See table 8-1 for summary of norr>encl ature
**See text
J \f ^- V t_ /\ U
***Not corrected for recover}', these concentrations represent minimum values
+Analysis reported by Lab B for monomer groups only isomers and detection
1 T m i + i-iri-f- ."iTwnn
.limit not given
^Interferences too large to quantify
\
61
-------
TABLE 28. CHLORODIBENZOFURAN AND CHLORIDIBENZODIOXIN ANALYTICAL RESULTS
FOR DAY 2 COMPOSITE SLUDGE LIQUID LAB A
CDD/CDF^
Minimum
detectable
Total no. of Total detected*** concentration
apparent isomers** (ng/g)
MCDF
DCDF
TrCDF
TCDF
PCDF
HxCDF
MCDD
DCOD
TrCDD
TCDD
PCDD
HxCDD
4
0
0
0
1
2
1
0
0
0
3
4
0.6
0
0
0
0.3
0.8
0.2
0
0
0
0.6
2.5
0.2
0.3
0.7
0.1
0.2
0.5
0.2
0.3
0.7
0.9
0.3
0.5
*See Table 7-6 for summary of nomenclature
**See text
***Not corrected for recovery, these concentrations represent minimum values;
all s,ludge is wet weight
62
-------
TABLE 29. CHLORQDIEENZOFURAN AliD CHLORODIBENZODIOXIN ANALYTICAL RESULTS
FOR DAY 4 COMPOSITE SLUDGE LIQUID LAB A
CDD/COF*
MCDF
DCDF
TrCDF
TCDF
PCDF
HxCDF
HpCDF
OCDF
MCDO
DCDD
TrCDD
TCDD
PCDD
HxCDD
HpCDD
OCDD
Total no. of
apparent isomers**
3
0
0
0
1
3
2
1
1
1
0
0
0
3
2
1
Total detected***
(ng/y)
0.7
0
0
0
0.5
8
7
2
0.6
0.4
0
0
0
10
70
230
Minimum
detectable
concentration
(ng/g)
0.2
0.4
0.9
0.05
0.2
2
1
1
0.2
0.4
0.9
0.9
1
1
1
1
*See Table 7-6 for suTimary of nomenclature
**See text
***Results corrected for recovery
63
-------
TABLE 30. CHLORODIBENZOFURAN AND CHLORODIBENZODFOXIN ANAIYTICAL RESULTS
FOR DAY 3 COMPOSITE ASM LAB A
CDD/CDF*
Minimi."
detectable
Total no. of Total detected*** concentration
apoarent isomers** (ng/g) (ng/g)
NCDF
DCDF
TrCDF
TCDF
PCDF
HxCOF
HpCOF
OCDF
MCDD
DCDO
TrCDD
TCOD
PCDD
HxCDO
HpCOO
OCDD
3
8
6
8
5
2
2
1
1
5
5
NR
5
1
2
1
90
7.5
20
1.2
0.7
1
1.6
1.2
2
1
5
0.8
2.6
8.7
42
96
0.1
0.3
0.6
0.05
0.1
0.3
0.6
1
0.1
0.3
0.6
0.2
0.1
0.3
1
1
*See Table 7-6 for summary of nomenclature
**See text
***Resu1ts corrected for recovery
-------
TABLE 31. CHLORCDIBENZOFU-AN AND CHLORODIBENZODIOXIN ANALYTICAL RESULTS
FOR DAY 4 COM^UVITE ASH LAB A
CDD/CDF*
MCDF
OCDF
TrCDF
TCDF
PCDF
HxCDF
HpCDF
OCDF
MCDD
DCDD
TrCDD
TCDD
PCDD
HxCDD
HpCDD
OCDD
Total no. of
apparent isomers**
3
10
11
8
t;
4
0
0
2
4
4
6
4
3
2
1
Total detected***
(ng/g)
5
8
17
3
3
J.8
0
0
0.7
0.5
6
3.3
6
10
4
1
Minimum
detectable
concentration
(ng/g)
0.1
0.3
0.6
0.1
0.3
0.4
2
1
0.1
0.3
0.6
0.2
0.3
0.4
2
0.8
*See Table 7-6 for summary of nomenclature
**See text
***Results corrected for recovery
65
-------
TABLE 32. CHLORODIBENZOFL'RAN AND CHLORODIBENZODOXIN ANALYTICAL RESULTS FOR
DAY 2 ASH LABS A, 8 AND C.
MCOF
DCDF
TrCOF
TCDF
PCDF
HjCDF
HpCOF
OCDF
TOTAL CDF
NCDO
DCDS
TrCDO
TCOO
PCDD
K,COD
HpCDO
occo
TOTAL COO
All
3
3
8
7
5
5
2
1
1
4
5
4
5
5
2
1
Compos 1 te4
TD* HDL3
75
25
15
7
8
5
6
2
143
1
5
2
4
32
81
117
200
433
0.1
0.3
0.6
C.5
1.0
1.0
1.0
1.0
O.i
0.3
O.i
0.2
1.0
1.0
1.0
1.0
Lab-8
Bottom Ash CIO Baghouse Ash
AI TO HDL AI TO
«
NR
NR
NR
NR
NR
I*
NR
NR
NR
NR
NR
N.!
NR
W
NR
ND
NO
NO
NO
NO
NO
SO
ND
<420
ND
NO
NO
NO
NO
ND
HO
NO
<800
24
42
45
29
68
115
25
71
102
44
52
47
>.
165
95
198
tv.
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
29
50
ND
NO
ND
ND
NO
ND
<575
ND
NO
ND
ND
ND
ND
ND
ND
<920
118
KOL
27
48
52
34
77
132
29
163
117
31
60
54
112
189
109
226
Bottom Ash
AI1 TO2
KR5
NP
KR
NR
NR
NR
NR
NR
NR
NR
NR
1
4
3
2
1
NR
NR
NR
detected (ng/g)
3m]nIITUI^ detertahle 1 mit (ig/q)
?u^po^ i - 'J by *ei.inl 2:5 (bo t torn:
^V\ -- not -tporteJ
-------
TABLE 33. SAMPLE CLEAN-UP PROCEDURES
Prewash
Extraction
Exchange
Wash
Column
LAB-A
LAS-B
None
Benzene 16 hrs
Hexane
Base, acid
None
Benzen^ 24 hrs
Petroleum ether-
Base, acid
1 Silica base, acid A^mina
2 Alumina 1:1 CH2C12/HEX
1:1 CH2C12/HEX
LAB-C
IN HC1
Tciuene 36 hrs
Hexane
N.R.
Alumina
1:1 CH2C12/HEX
67
-------
chromatographic peak does not necessarily correspond to a single isomer of a
given class; such peaks may represent more than one isomer. Hence, the
authors selected the terminology "apparent isomers."
8.2 DISCUSSION OF RESULTS
Since extraction and cleanup and quality assurance procedures were
quite different in the three laboratories, no detailed comparison or
discussion of results will he made. Several general points are raised briefly
as follows:
Based on the results given it is apparent the treating solution of
pentachlorophenol in oil, wastewater sludge, and resulting ash
contain chlorinated furans and dioxins. In terms of specific
monomers TCDD's are evidently generated in the process while OCDD's
are reduced. This determination is based on an assumed ash
generation rate of 5 g/hr and sludge feec of 79 g/hr. Wood inputs
were not analyzed for CDD or CDF, but are assumed mino>- compared to
pentachlorophenol sludge waste.
9 The highly toxic isomer 2,3,7,8-TCDD has not conclusively been
demonstrated as present and apparently is not in ash samples. See
Appendix C for reported mass fragmentography and synthetic isomer
standard curves.
» The toxicities of CDDs and CDFs are quite isomer-specific (see
table 34). Thus, data useful for risk analysis must contain isomer
data that is clearly independent of contamination. Staff chemists
for all the 1 'bs are quite confident of the reliability of their
reported values especially in light of tne use of standard isomers.
« Values determined are in the range reported for combustion ash and
especially of wood preserving waste ash from other sources see
table 35. The fractions of bottom ash/^yash have TCDD values
similar to values reported for precipitator/down stack a^h
fractions in Germany both in level and increasing ratio with
smaller size.
a Ratios of TCDD/CDD and OCDD/CDD of the feed sludge (0 and .74-.76
respectively) and penta in oil (0 and .82 respectively) are typical
of other penta environmental samples but also differ from flyash
ratio enough to indicate composition changes.
e Keasurements of I^IDD, DCDD, and TrCDD monoi.iers are significant as
this is only U.2 second time combustion sources measureme, _s nave
had positive val ies reported.
Toluene extraction may yield a cleaner concentrate than benzene,
strengthening the apparent reliability lab C values.
68
jl ,. li-fiii-a
-------
Recovery of spikes is dependent on both spiking isorv;er and time of
spike in the procedure. These were not similar for the three labs,
Other information on COD/CDF analysis and procedures is provided in fhe
Appendix C.
TABLE 34. ACUTE TOXICITIES 01- OIOXINS (7)
LD50 (ng/kg)
Substitutions with chlorine Guinea pigs Mice Rats
None <50 x 103 >l x 10
2,8 >300,000
2,3,7 28,440 >3,000 >1 x 10°
2,3,7,8 0.6-2.0 283.7 40
1,2,3,7,8 3,1 337.5
1,2,4,7,8 1,125.0 >5,000
1,2,3,4,7,8 72.5 825'
l,2,3,6,7,t 70-100 1,250:
1,2,3,7,8,9 60-100 >],440
1,2,3,4,6,7,8 7,180
1,2,3,4,5,7',8,9 >4 x 106
Hexa (mixture) ~1 x
Oct.a (r.ixture) ~2 x 1G5
Interperi toneal
69
2
-------
TABLE 35. COMPARISON OF COD VAUES IN ASH REPORTED FROM COMBUSTION SOURCCS^6
Reporting source
This project (Plant A)
Lab A (d-2)
Lab A td-3)
Lab A (d-4)
Lab C (d-2)
Bottom ash
Saghouse (fly)
Multiple sources wood
preserving waste ash
Lab combustion of
penta (smoke)
Lab combustion of
penta, 2,4,6 tri-,
and 2,3,4,6-tetra-
chlorophenol (ash)
Dow Chemical
Oil/coal combination
Tar burner
Tar, gas kiln
Oil combustion (Swiss)
Municipal Incin-
erator (ng/m3)
TCDD
4
.8
3.3
10
960
5.2
17
38
100
PCDD HXCDD
32 81
2.6 8.7
6 10
20 40
1,400 2,000
9-27
14 56
58 74
2
8
3
160 180
H CDD
(,g/g-
117
42
4
100
640
90-135
172
18
4
92
32
130
OCDD
198
96
1
140
210
575-2,510
710
6
24
300
230
40
TCDD
CDD
.009
.005
.10
.032
.18
0
.005
.1
.56
0
0
.16
OCDD
CDD
.45
.61
.032
.45
.04
.8-. 9
.74
.035
.35
.75
.87
.066
New York (ng/m3) 40-120
Swiss
Canada
Japan
Germany
Precipitator ash
2
9
25
8 30
15 13
60
3
120
.4
.009
.22
.078
.19
.55
.010
.31
.29
Downstack ash 300,000
(ng/m3) (15,
000)
'^^iXzSu^^.j!
-------
SECTION y
EVALUATION OF FUGITIVE EMISSION AND RESIDUt" SOURCES
For the purposes of this program, fugitive materials are defined as
residues fron*:
e Solids settled in unlined lagoons
Spillage and drippage from treating cylinders
or emissions from:
Vapors released from the treating cylinder during unloading and
charging operations
« Vacuum vent exhaust during the treating cycle
9 Emissions derived when removing the accumulation of treating
solution from valves, fittings, or open processing vessels
These sources of materials are of concern because of the opportunities for
employees to contact the toxic compounds before dilution and because of their
impact on ambient air quality or future land use.
When the treating cylinder (retort) is opened, any treating solution
eft in the vessel may spill onto the ground. If the retort is surrounded by
a spill berm, the treating solutions are recovered and recycled to the
system. However, if the treating solution is allowed to fall onto the ground,
housecleaninq activities could result in an accumulation of hazardous waste
material. Similar minor waste accumulations occu~ fro-n fhe solids fallout in
unlinpd lagoons or holding ponds. The slow buildup of residue in large
wastewater treatment lagoons can accumulate and remain hdzardous after the
is abandon see Section 5.3.
Low-mo 1 ecu 1 ar-weight organic compounds vaporize in the retort during
the high- temperature preservative application. During marge changes, these
organics are released as fugitive emissions throuoh t~e open door of the
retort, forming a dense white plume. The woe 1 removeJ from the retort also
emits material as a white plume that may exceeu 40 percent opacity after
20 minutes. Qualitative and semi-quant" tative organic analyses 1 or speci
pollutants in these emissions were expected to show th2 presence of benzc.
toluene, phenol and similar volatile arj lew-mo1 ecu 1 ar-weight compounds.
71
^^ fciuSJ^Jtta&^-TtflJiffij^k^
-------
Emissions from the vacuum exhaust and other retort vents also are of
concern. Source tests at one mill measured 2.2 q/m3 (0.^5 grain/scf) of
aerosol in 12.5 m3/min (440 sc.'m) of gas from a vacuum pump vent. Steam
conditioning released 44 g/m-' of aerosol it, a 13 m3/min stream.
Finally, wnile fugitive emissions from preservative handling,
transport, leaks, and valves can occur, no qualitative or quantitative data is
available to characterize such emissions.
This section presents the component speciation results from fugitive
emissions tests conducted at plant A and residues from plant B. Emissions
from preservative handling, transport, leaks, and valves were not tested.
Also the subjects of chemical losses from treated material or runoff from
contaminated surfaces was not covered.
9.1 TREATING CYLINDER SPILLAGE AND DRIPPA6E
The treating facility tested employed two treating cylinders, and used
penta and creosote preservatives. Samples of accumulated spillage and
drippage were collected at the bottom of the pent" and creosote treating
cylinder access doors. Waste liquid was intercepted after falling from the
cylinders but prior to ponding on the ground beneath. Two samples were
obtained at each location at the beginning and after the field test period.
Table 36 presents the qualitative organic analysis for these samples.
9.2 FUGITIVE EMISSION DURING UNLOADING AND CHARGING OPERATIONS
Air samples were collected during unloading and charging operations
directly above the penta and creosote treating cylinder access doors.
Sampling was performed 'ising the modified EPA Method 5 train and XAD-2
cartridges described in Appendix A.
Fugitive emissions released through the open cylinder door during
charge changes appeared as a dense white plume which persisted throughout the
sampling. Table 37 presents the qualitative organic analysis for these
samples in concentration per volume of air sampled. It >vas not feasible to
quantify a mass emission rate due to large fluctuations in ambient air
dilution caused by changing wind speed and direction.
9.o VACUUM VENT EXHAUST
Certain wood treating processes require the application of pressure and
vacuum at various steps of the treating cycle. The pressure release and
vacuum exhaust are sources of fugitive emissions, both aerosols and vapors.
Emissions from a vacuum vent common to the penta and creosote treating
cylinders were characterized. The frequency of such emissions is variable but
less than 10 percent of the treatment period. During the course of a single
treating cycle at this facility, the chronological sequence in Tabie 33 was
observed. Grab samples were analyzed onsite for total hydrocarbons (THC)
72
-------
TABLE 36. CHARACTERIZATION OF PENTA AMD CREOSOTE TREATING
CYLINDER SPILLAGE AND [PJPPAGE
Penta treating cyl inder
Sample location: spillage and drippage
Date collected:
Compound
Pentschl orophenol
Phenol
FT uoranthene
Naphthalene
Ben zo( a) anthracene
Benzof a)pyrene
Benzof luordnthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(g,h,i )perylene
Fluorene
Phenanthrene
Di ben zo( a, h) anthracene
Indeno(l,2, 3-c,d)pyrene
Pyr jne
Benzene
Toluen?
Ethylbenzene
9/23/80
1,500
ao
29
50
60
50
54
50
16
47
<10
110
150
<10
<10
24
<0.5
<0.5
<0,5
9/25/30
Concentr
2,100
UO
180
200
80
5.6
26
85
11
55
<5
140
320
<5
<5
140
0.1
C.5
0.5
Creosote treating cylinder
spi 1 1 age and drippage
9/23/80
'ations in ug/g
390
<20
420
1,300
870
240
700
710
72
1,200
<50
1,100
2,300
<50
<50
370
0.3
<0.2
<0.2
9/25/80
1,800
<10
200
1,400
1,000
200
500
850
180
1,500
40
2,600
2,200
20
52
1,700
15
<1
<1
73
-------
TABLE 37. QUALITATIVE ORGANIC ANALYSIS RESULTS FOR FUGITIVE EMISSIONS
Sample location:
7 i;n number:
Compound
Pentachlorophenol
Phenol
Fluor anthene
Naphthalene
Benzo(a)anthracene
Benzo(ajpyrene
Benzof luoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(g,h,i )perylene
Fluorene
°henanthrene
Dibenzo( a, h) anthracene
Indeno(l , 2,3-c,d)pyrene
Ptinta
1
treating
2
cyl inder
3
Creosote
treatincj
cyl inder
1
Concentrat ion*
<0.02
<0.02
0.026
0.057
<0.02
<0.02
<0.02
<0.02
0.13
0.026
-------
TABLE 38. TREATING CYCLE SEQUENCE
Treating Cycle
Pressure
or vacuum Ter(i.
(atmosphere) °r (°C) Time started
Time completed Lapse tii.ie (hri)
CONDITIONING
1.
2.
3.
4.
5.
Steaming
Vacuum
Preservative In.
Heating in Oil
Preservative Back
23 in. (.77) 8:15 am
5:45 am
210 (99) 6:15 am
. 10:15 am
10:15 am
6:15 am
10:15 am
10:45 am
2.00
.83
4.00
.83
TREATING
6.
7.
8.
9.
10.
11.
i2.
13.
14.
15.
Initial Vacuum
Initial Air
PreservativR In
Pressure Conmenced
Preservative Bai_k
Final Vacuum
Recovering Drippings
Secondary Steam
Secondary Vacuum
Changing Time
70 ps1 (4.8) '0:45 am
11:00 am
90 psi (6.1) 200 (93) 11=;0 am
210 (99) 1:30 pm
23 in. (.77) 2:00 pm
4:00 pm
TOTAL TIME
11:00 am
11:20 am
1:30 pm
2:00 pm
4:00 pm
4:15 pm
.42
.55
2.28
.83
2.00
.42
.42
11.0
-------
TABLE 39. SUMMARY OF TOTAL HYDROCARBON DETERMINATIONS
Penta pan Creosote pan
Emission evaporation evaporation
Point device device
Penta
treating
cylinder
fugitive
emission1;
Creosote
treating
cylinder
fugitive
emissions
Vacuum vent
Penta cycle
Creosote cycle
Date ppra* total hydrocarbons as methane (tlmo cf day)**
9/23/80 444 C326)
9/24/80
892 (1730)
36 (1747)
__
3,660 (1326) 616 (1519) -
984 (1351)
1,790 (1425)
9/25/80 16r> (1250) 1,460 (1450)
185 (1305) 1,440 (1514)
221 (0828) 42,100 (1034) 22,100 (1332)
365 (0914) 52,300 (1052) 41,500 (1349)
*ppm = parts per million
4*(tirae) = time s^ample was collected, 24-hr clock
-------
TABLE 40. SUMMARY OF SPECIFIC LOl.'-MOL'ECULAR-WEIGHT HYDROCARBON
DETERMINATIONS AT A COMMON VACUUM VENT
Date
(Emission Time
points) (24-hr c
Benzene*
1 ock )
Toluene
Ethyl benzene
Sum of
specific
hydrocarbons
as methane
(penta thermal evaporation device)
9/23/30 1650
9/25/80 1250
1305
(creosote thermal
9/24/80 1730
1747
9/25/80 1450
1514
1.6
ND
ND
evaporation device
ND
ND
ND
ND
ND
ND
ND
)
ND
ND
ND
ND
ND
ND
1.8
ND
1.5
13
13
4.6
ND
6.9
ND
5.8
53
53
(penta treating cylinder fugitive emissions)
9/24/80 i;-2b
1351
1425
(creosote treating
9/24/80 1519
2/25/80 823
914
(vacuum vent d'.-'in
9/25/80 103.'.
1052
ND
ND
ND
cylinder fugitive
ND
ND
ND
g penta cycle/
ND
104
ND
ND
ND
emissions
ND
ND
ND
1,570
1,480
ND
27
11
)
ND
3.3
2.1
1,610
1,720
ND
110
43
ND
13
8.6
11,600
12,000
(vacuum vent ouring creosote cycle)
9/25/80 1332
1349
1,310
1,300
42
64
1,620
1,600
10,100
9,960
*Hydrocarbon units 1.; ppm
ND not detectable
77
-------
using the procedures described in Appendix A. Table 39 presents a summary of
the results of the THC analysis during both penta and creosote treating cycles.
Grab samples of emissions from the vacuum vent also were analyzed for
specific low-mclecular-weiqht hydrocarbons: benzene, toluene, and
ethylbenzene. These components were measured onsite using the methods and
procedures described in Appendix A. Table 39 presents a summary of the
analyses for specific low-molecular-weight emissions during pcnta and creosote
treating cycles. These data show that significant concentratic s of organic
compounds are emitted to the atmosphere.
From Table 38, it can be seen that a vacuum was drawn for a total of
4 hours, and the retort was open for a total of 50 minutes. Based on these
emission periods and the data contained in Table 39, emission quantities can
be calculated. Of these quantities, .he vacuum vent represents the greatest
emission source. A fiald estimated vacuum vent exhaust of 12.5 sm^/mii, (see
Appendix A) with an organic concentration of 42,000 ppm as methane Table 39
.042 x 16 x 273/22.4 x 298 = 0.027 g/T result, in an emission rate of
340 g/min. For a plant operating weekday: with two retorts emitting for a
half hour per charge, the annual emission rate would be 5.3 metric ton per
"^ar. By comparison, a medium-sized oil refinery may emit, fugitive VOC as
much as 1,000 metric ton/year^. Therefore, though these concentrations of
organics may cause localized problems, the total emission burden is small
compared to some other sources.
9.4 SETTLED SOLID RESIDUES
The final disposal of residues that accumulates is treatment lagoons,
holding ponds or tank depends on site specific management practices. When the
equipment is part of the processing plant the accumulated material is
frequently recycled if possible. Contrarily holding lagoons and spray ponds
may only occasionally be cleaned or else residue i.^y accumulate until the
lagoon is bypassed for some alternative devise. In the latter case, residues
may require removal to prevent impacting future land use. For the field sites
surveyed plants A and C currently transfer residual sludge or ash to on-site
landfills by direct hauling. Plant B's residue impacts the environment as a
continuous minor land application is affected indirectly through lagoon bottom
buildup. The character of tnis material is presented in Tab!.: 41. Plant A
had a similar prior practice that was abandon for evaporati- .
Without more samples than were analyzed no truly representative numbers
are available to quantify the balance of materials between water and
sediment. However, the high values of components in Table 41 indicate that
incoming waste eventually decreases in concentration while the bottom sludge
increases. As discussed in Section 6, higher molecule" weight organics are
not emitted very rapidly at low temperatures. Thus it is assumed that toxic
organics are settled out of the wastewater onto the laqoon bottom and remain
for some period of time. Residues are thereby slowly transferred to land
albeit with undocumented environmental effects.
78
-------
TABLE 41. LAGOON SETTLED SLUDGE COMPOSITION
Component Plant 8 ug/q Plant A (Abandon Pond) ug/g
Pentachlorophenol 15,000
Phenol <50
Fluoroanthene 5,800
Naphthalene 1,500
Benzo(a)anthracene 2,600
Chrysene 2,0r'0
Anthracene 1,700
Fluorene 5,600
Phenanthrene 9,000
Pyrene 4,400
Other PNAs 490
COD 2.1 2.2
CDF 1.4 0.4
-------
REFERENCES
1. Environmental Protection Agency "Timber Products Processing Point Source
Category Effluent Limitations Guidelines, Pretreatment Standards and New
Source Performance Standards" 40 u^P, Part 42:9 44 FR GPSIO-S^O
(October 31, 1979) and 46 FR 8260-245 (January 16, 1981).
2. DaRos, B. et al., "Wood Preserving Industry Multimedia emission
Inventory" EPA 600/2-01-066 (In press),
3. Thibodeaux, L. 3. "A Test Method for Volatile Component Stripping of
Waste Water" EPA-660/2-74-044 (May 1H/O.
4. Thibcdeaux, L. J et al., "Measurement of Volatile Chemical Emissions
from Wastewatar Basins" EPA IERL (draft).
5. McAlister, J. A., B. G. Turner and P.. B. Estridge "Ti eatment . S.'1e:ted
Internal Kraft Mill Wastes in a Coding Tower" EP'v-12040 EEK (August
1971).
6. Harris, J. C. et al., "Uior.in Emissions from Combustion Sources: A
Review of th^ Current Stace of Knowledge" A. D. Little -Inc. report to
ASME, Camoridne, MA, n-jcembsr 29, I98C.
7. Esposito, M. P., T. 0. Tiernan and F. E. Dryden, "Dioxins"
EPA-600/2-80-197 (November 1980).
8. Radian Corp: "Control Techniques for Volatile Organic Emissions from
Stationary Sources" EPA-450/2-78-G02 (May 197°).
BO
-------
APPENDIX A
CHARACTERIZATION OF MULTIMEDIA EMISSIONS FROM THERMAL (PAN)
EVAPORATION OF WOOD PRESERVING WASTEWATERS
Raw data for this study has been compiled and is available upon
request. That data covers the source emission sampling for high-molecular-
weight, and total hydrocarbon, and specific low-molecular-weight
determinations. Copies may be obtained from EPA-Industrial Environmental
Research Laboratory, 26 W. St. Clair Street, Cincinnati, OH.
A.I TEST SITE
Tne wood treating facility tested is decribed in Section t> with a
schematic of the plant wastewater/preservative recovery system shown in
Figure 1. The treated product amounted (17,320 ft-3) 490nr to during the
July 22 to 25, 1980 field test period. Table A-l oresents a summary of the
production components during the field test.
A.2 FIELD TEST PROGRAM
The following subsections describe the equipment and techniques
employed during sampling.
TABLE A-l. SUMMARY OF TREATING PRODUCTION FOR THE
PERIOD JULY 22 THROUGH JULY 25, 1980
Treated 5i Penta
Product Liqht Oil Creosote
ft3 m3 ft3
Uti lity poles
Posts
Lumber
Pil ings
42.6
113.6
118.4
1,509
4,012
4,130
178.9
37.0
6,318
1,306
Total 274.7 9,701 215.9 7,624
81
-------
l^fBWgiifffi!^
A.2.1 Source Emission Sampling of Pan Evaporation Devices
Sampling of high-molecular-weight organic emissions from the pan
evaporator outlet, was conducted using the EPA Method 5 sampling train
nonisokin°tically as shown in Figure A-l. The train consisted of a heated
1/2-inch O.D. Teflon sample line connected to an empty Greenberg-Smith
impinger (witnout an impaction plate), followed by the XAD-2 resin cartridge.
The resin was followed by a second Greenberg-Smith i~pinger containing 100 ml
of deionized water. The third impinger, an empty Green&erg-Smith without an
impaction plate, was followed by a silica gel desiccant (SiOp) trap to
protect the vacuum pump and sampling control module from moisture.
Four complete source tests were conducted at the penta (pan) thermal
evaporator and at the creosote thermal (pan) evaporator. The evaporators and
sampling locations are shown in Figures A--2 and A-3. Fcr each source test,
the sampling equipment was placed on the roof of the thermal (pan) evaporator,
the Teflon sampling line was allowed to preheat to approximately 250°F, and
the impinger train was prepared. Sampling was started by turning on the
vacuum pump and opening the coarse adjusting valve to its midpoint. This
valve position was maintained during the entire sampling period.
The volume of condensate determined the possible sampling times. As
the first impinger filled with water, control of the sampling rate was lost.
The sampling run was terminated by shutting off the vacuum pump, disconnecting
and sealing the inlet and outlet of the Teflon sample line, and moving the
train to the field laboratory. Table A-2 presents a summary of the pertinent
source sampling parameters at each test location.
Samples were transferred from the sample trains to specially cleaned
and labeled storage containers. The probe nozzle, probe, and connecting lines
were rinsed with methylene chloride, and the recovered samples transferred to
the appropriate storage containers. Immediately following sample recovery,
all samples were iced in the field and maintained under those conditions for
their transport to the analytical laboratory.
A.2.2 Source Emission Sampling of Penta arid Creosote Treating Cylinders
Sampling of high-molecular-weight emissions during the unloading and
charging of the penta and creosote treating cylinders was conducted using the
same procedures and methods described in section A.2.1. The sampling
locations are shown in Figures A-4 and A-5. Sampling was initiated a few
minutes prior to opening the cylinder door and terminated a few minutes after
the door was closed. Sampling times varied from 11 to 21 min and were
dependent upon the size of the charge being unloaded or loaded and the ease
with which the operation proceeded. Table A-3 presents a summary of the
pertinent source sampling parameters for each test.
A.2.3 Total Hydrocarbon Determinations
Total hydrocarbon sampling was conducted at the outlet of the penta and
creosote thermal (pan) evaporators, the penta. and creosote treating cylinders
82
-------
Heated leHon sai.'plimj line
ff
XAD-2 tr«p
\ Dry gas rr
-------
F1
A-2. Photograph of penta then,*] (pan) evaporator and sample location.
-------
00
-
Figure A-3. Photograph of creosote thermal (pan) evaporator
-------
TABLE A~Z. SUMMARY OF SOURCE EMISSION SAMPLING PARAMETERS FOR TEST CONDUCTED
AT THE PEMA AND CREOSOTE THERMAL (PAN) EVAPORATION DEVICES
bjruftrii- Actual
Petit*
fvjp \ 9-23-30 2M.2 13,90
9-24-60 29.2 0.695
9-25-80 rt.4 19.5
9-2&-80 29.5 e.tl
[»p"U" .-:.-:; *.4 u.06
9-24-HO 29.2 27. ?9
9-25-80 29.4 2^.W
9-25-00 29.5 19.4i
Mrti-r
("F)
59.0
63.5
43.5
54.8
5*.3
59.0
89.7
55.5
6, '9
1.300
972
593
622
I.:M
762
945
e Stuk
(*)
209
215
209
206
191
!93
190
195
Wr-l.jllt
Or v
( 1 L'/ 1 ti -(no IP)
29. 8A
27.84
29.04
29.84
29.84
29.84
?9.84
29.84
f!uli»cul ar
Weight
(lt,/lb-mole)
22.4]
18.13
20.036
20.82
22.39
22.1
n.n
27.78
S. imp 1 I'd
Gas
(',cfm) H?n
19. OR 62.6
0.697 *»..<)
6.50 R2.8
8.8 76.2
17.16 (.1.)
29.02 64.7
23.87 60.1
20.89 68.1
Tot 4!
Sdftp 1 ing
1 1 (M.
50.0
29.0
19.5
15.0
30.0
56.0
45.0
O.5
CO
°^ ^A-^iui^J Ml of air.
-------
CO
l-r.===-- ^M I ^
W^^^-**m
Figure A-4. Photograph of penta treating cylinder being charged with
poles and the fugitive emission vent.
-------
figure A-t>. Photograph of creosote treating cy) truer buiiuing and
fugitive emissions vent.
-------
TABLE A_3. SuW-WRY OF SOURCE t'MISSION SAMPLING PARAMETERS FOR TESTS CONDUCTED
AT THE PENT.A AND CREOSOTE TREATING CYLINDER DURING UNLOADING AND
CHARGING OPERATIONS
8arv«.c'.fic Act'-ml*
£ -~ f\*, i/ r * ii=Rfi ](* fV? Lff
i «X 1 1 ' i". ' { in ,ft^ 't | n o 1 i^ar l^^V***" ^l Jf
!>*» »^.-wr Gil* ;>.;} (*cf*J If)
PIP Kflarl
i »-;j-ao »"*.-80 rt.40 2?.3S W.O
S.?!»rl; 1 t volutu^ Percent
folj («T) f iti/lb-iuc'e) ()t;/lt>-!W)U) (scfm) H;/0
».i S?.0 ?9.84 2S.19 16.17 13.9
n.1 VO.O Z9.M ?9,1? 21.73 6.M
!j.l 69.0 ?9.fl4 ?9.7? ??.ni 1.0
70.0 29. 84 29.84 25.17 0.0
loul
(ruin)
11.0
14.0
16.0
71.0
CO
y-S
-------
during unloading and loading, and at the outlet of the vacuum vent discharge
to the barometric condenser. Sampling was conducted using the system shown in
Figure A-6. The gas sample was extracted from the stack via a 7U sintered,
stainless steel Todel Mo. 5S-4 FF-.1 filter, manufactured by Nupro Valve
Company, Willoughby, Ohio. The filter removed fine particulates which could.
if allowed to pass Into the THC analyzer, occlude the FID sample inlet
capillary. A 0.006m O.D. stainless steel probe connected the filter unit, to
the heated sampling line via a three-way stainless steel solenoid valve. This
valve introduced sample gas or calibration gas expending on the desired mode
of operation. A 100-ft, heit-traced, 3/3-inch 0.0. Teflon sample line
manufactured by Unitherm Company was used to transport the sample to the
vacuum pump. The sample line temperature was maintained at 394°K by
internal temperature controllers already installed. A Teflon-coated diaphragm
vacuum pump manufactured by Thomas Industries, Sheboygan, Wisconsin, was used
to pull the sample through the heated line. From the vacuum pump exit, the
sample was split and routed to the analyzers via short lengths of heated
Teflon line.
Prior to operation and calibration, the completed sampling system was
operated at normal line sampling conditions and purged for several hours with
zero grade nitrogen to remove any traces of residual hydrocarbon contamination
in the lines. During this "bake-out" procedure, stainless steel tube unions,
filters and probes were haated using a propane torch. Before and after each
test, a leak test was performed on the sampling system followed by calibration
of the THC analyzer using zero grade nitrogen gas and a mixture of 801 ppm
methane in nitrogen. During calibration, the three-way valve was positioned
to block the sample probe and filter, allowing the calibration gas to pass
into the heat-traced sample line. Introducing the calibration gases at this
location, ensured the sample gases and calibration gases were treated in the
same manner, nullifying possible undesirable effects due to absorption in the
sampling line and system.
A model 400 total hydrocarbon ^THC) analyzer, manufactured by Beckman
Instruments, Fullerton, California, was used to continuously monitor total
hydrocarbon emissions from the vacuum vent discharge. This analyzer uses the
flame ionization detection (FID) method. The analyzer output was recorded
jsing a Model 585 strip chart recorder manufactured by Linear Instruments
Corporation, Irvine, California.
The FID was operated using zero grade (<1.0 HC) hydrogen fuel and zero
grade air supplied by Airco Industrial Gases, Santa Clara, California.
Hydrogen fuel and zero air pressure were set at ?07 KPa (30 psi) and 103 KPa
(15 psi), respectively, using internal differential pressure regulators in the
analyzer.
After approximately 1 hour of sampling at the vacuum vent, the heated
sampling line was heavily contaminated with hydrocarbons. Attempts to
recalibrate and rezero the FHC analyzer were impossible. At this point, the
heated bulb method was substituted for the continuous method.
90
-------
"" sintere.l itjinless steel
o s 1 4 c k
Calibrat ion
gases
Three-«i> stainless
Heat triced Teflon sample line i)C.43n,
Heat traced Teflon connect
'I
rv
J "! inject iori
L-J loop and
U-i L4-J ' te^fl
hydrocart.on
anal y;er
Strio
chart
recorder
TJ
A
rO
O
L.
(
E_
M <
Tft
M
A
o^
^
=
',!
ct-
Go",
I
rip
,*. rt
rt?cOrcter
T
A
l_
«
0
1_
*,
<
n
H
,,
S
CJ
~
-
L
r 1
T
'S,
c
k.
3
^
u'.
<
2
h vi'vc
> I
Figure A-6. Schematic of unburned hydrocarbon and gas chromatograph
sampling system.
91
-------
Grab samples from the appropriate source were collected by evacuating
and purging ?50-rol p}-rex glass sampling Luibs heated to l?l°f (;50°F).
Alitluotes of the collected samples then were withdrawn from the heated bulb
using a 5-mi gas-tight syringe inserted through a septum port in the bulb.
Tf:<" syringe contents were injected VM a 2-cmJ -injection loop and bcmkflush
valve into a Varian Model 3700 cas chro.-nitoqrapn (GC). GC operating
condicio.is for THC anal/sis are presentee} in Table A-4.
Table 3l> prcs2nts a summary of the results of THC determiriatiC'"1: ct the
various emission points basec on the total area c^romatogra^h and hackf 1-jih.
The results are reported as PPM methane
The accuracy uf the data presented using the heated bulb method of
varies substantially. The greatest error associated with this -nethod
is sample integrity. It was apparent that samples collected at the penta and
creosote thermal (pan) evaporators were rrostly water vapor. When these
samples were transfer-red via syringe to the GC for analysis, condensation
aitnin the syringe most 'ikely co-condensed hydrocarbons, thus causing lower
values than would be expected. The error is estimated to be ^ 50 percent
ma* i sum.
TKC values for samples collected from the treating cylinders are also
very uncertain due to the nature of the s-jn.pllng site, the fugitive emissions
were prone to large fluctuations in a^
-------
TABLE A-4. GAS CHROMATOGRAPH OPERATING CONDITIONS FOR
THE DETERMINATION OF TOTAL HYDROCARBONS
Column:
Injector temperature:
Temperature program:
Special ncte:
6-ft x 1/8-inch 0,D. stainless steel tubing packed
with 1 percent SP 1000 on carbopack (80/100 mesh)
120°C
Isothermal at 120°C
Inject 2 cm3 sample for approximately 5 min or
until ethyl benzene component was eluted, then
back-flush until baseline returned to zero.
-------
A.2.5 Liquid Grab Sampling
Grab samples of the following were collected during the 3-day sampling
period:
Penta thermal (pan) evaporator contents
« Creosote thermal (pan) evaporator contents
« Bulk per.ta in treating oil (before use)
Bulk creosote (before use)
« Penta treating cylinder spillage
Creosote treating cylinder spillage
« Penta oil/water separator (both fractions)
* Creosote oil/water separator (both fractions)
Liquid samples of the penta and creosote evaporator contents were co'Mected in
the morning and afternoon of each sampling day. Samples were collected by
lowering a precleaned sample container into the evaporator tank arid retrieving
the liquid near the surface.
Samples of liquid fractions contained in the penta and creosote primary
oil/water separators were obtained on a daily basis. Samples were obtained by
immersing an inverted sample container into the appropriate layer then tipping
it to collect the sample. Some contamination was observed during retrieval of
the lower fraction; however, this was minimal with respect to the initial
sample volume. This will bias the creosote wastewater values to the high
side, and the penta recycle oil to the low side.
The remaining samples of bulk penta and creosote, and the penta and
creosote treating cylinder spillage, were collected on a one-time basis.
After collection, all samples were immediately iced and maintained on ice for
transport to the analytical laboratory.
A. 3 ANALYTICAL METHODS
Samples from the thermal (pan) evaooration system were received on
Octotr-1" 21, 1980. The samples were assigned consecutive laboratory
identification numbers and stored at 4°C until analyzed.
A.3.1 Analytical Methods
Analyses were conducted for >latile orqanics, semivolatile oraanics,
and dioxins. Volatile organics analyses were based on variations to EPA
Method 624. Semivolatile organic (phonols and polynuclear aromatics) analyses
were based on sample preparation variation to EPA Method 625 in conjunction
-------
with fused silica capillary column gas chromatography/wass spectrometry
(GC/MS).
Analysis of Volatile Organics
The analytes of interest were benzene, toluene, and ethylbenzene. The
sludge and waste.-.ater samples were analyzed for these components.
A l.Og aliquot of the mixed sludge or wastewater was weighed into a
i5-ml crimp top vial. Pentane (9 ml) and l-bromo-2-chloropropane (lOyg) were
added as internal standards. A l-ul aliquot of this diluted sample was
injected in a 0.2 percent Carbowax 1500 on a Carbopack C packed GC column in a
Finnegan 1020 GC/MS instrument. Analysis and quantitation were conducted per
EPA Method 624 using the internal stnadard method.
Quality control for the volatiles analysis entailed the anlysis of
method blanks and method standards spiked at 10 ug/g of sludge. In addition,
the control requirements of Method 624, including instrument tuning to meet
specifications, were met.
Analysis of Semivolatile Organics
Semi vol ati le organics analyzed are listed in Table A-5. These analy^.s
were conducted by variations to EPA Method 625. The variations were in the
sample preparation and in the use of fused silica capillary column GC/MS to
determine these compounds.
Sample Preparation
Sludge samples were prepared as follows:
1. Place 10.0 g of the sludge in a clean 250-ml brown bottle. Add
10.0 g of anhydrous sodium sulfate and 100 ml of pesticide grade
dichlormethane, Shake occasionally and allow to sit overnight at
room temperature.
2. Take 1.0 ml of each extract for GC/FID screening. Store the
remaining extract at 4°c.
3. As required by the GC/FID screening, filter the extract into a
Kuderna-Danish concentrator and concetrate to 1.0 ml.
The GC/FID screening stage was necessitated by the wide variability of
r-ample concentrations. Figure A-7 summarizes the semivolatile scheme for
sludge samples.
The XAD-2 cartridge was carefully opened, any silicone stopcock grease
removed with a Ch^Clj wetted towel, and the contents transferred to a
preextracted Soxhlet thimble. The XAD-2 mate, ,al in the Soxhlet was spike
with surrogate mix and extracted overnight with
To assure analysis of all organics collected during the XAD-2 sampling,
two other samoles v;ere taken for each sampling c. ain: a dichloromethane probe
rinse and an impinger catch. For analysis, the dichloromethane rinse was
added to the XAD-2 soxhlet extractor. The impinger water was acidified to
95
-------
TABLE A-5. SEMIVOLATILE ORGANICS ANALYZED IN UOOD PRESERVING SAMPLES
Number Name
1 Phenol
2 2-Nitrophenol
3 2,4 Dichlorophenol
4 2,4,6 Trichlorophenol
5 4-Nitrophenol
6 4,6-Dinitro-o-cresol
7 Pentachlorophenol
8 Acenaphthalene
9 Fluoranthene
10 Naphthalene
11 Benz(a)anthracene
12 Chrysene
13 Acenaphthylene
14 Phenanthrene
15 Fluorene
16 Pyrane
17 Benzofluoranthenes
18 Benzo(a)pyrene
96
-------
ICg sampl;
Dry (Na-SO.)
and extract with
10 fold CH0C10
Screen dilute
extract by
GC/FIB
All peaks
in linear
GC/MS range?
Greatest peak
greater than
500 ug/ml?
Dilute
extract x 100
Proceed to FSCC
analysis
All peaks
less than
10 ,.g/ml?
Concentrate
extract x 100
Figure A-7. Analysis scheme for phenols/PAHs in wood preserving
sludges.
97
-------
pH 1 w .h 6N H?S04 and extracted overnight in a continuous liquid-liquid
extractor. The water extract and XAD-2 extract were then combined, dried with
anhydrous sodium sulfate, and concentrated to 1.0 r,\l.
Quality cor:frol for XAD-2 samples consisted of the analysis of
surrogate spikes, f.eld blanks, and spikecl method blanks.
Extract Analysis
Each of tne extracts obtained as described in the previous section was
analyzed for the compounds listed in Table A-5 using fused silica capillary
colunn GC/MS. The instrument operating conditions also are listPd in
Table A-6.
Tne quality control requirements listed in EPA Method 625 were
followed, incl-iciirig analytical calibration, mass spectrometer tuning to meet
decafluorotriphenylphosphine (DFTPP) criteria, and the use of multiple intenal
quantitation. The internal standards used were dg-naphthalene,
d^Q-anthracene, and d^-chrysene.
A.3.2 Analytical Results and Discussion
Volatile Organics
Volatile orqanics (benzene, toluene, ethylbenzene) were determined i'.
water and sludge samples using a pentane extraction method followed by GC/MS.
Figure A-8 is a chromatogram of a method blank spiked with the compounds of
interest at 1 pg/g. The solvent contaminants did not interface with the
dptemination of the compounds of interest.
Figure A-9 is a chromatogram from the analysis of a retort drip
sample. This sample is typical, having very low or no detectable volatile
aromaocs. No contamination was detected in the analysis of method blanks.
It was, however, necessary to increase the column bake cycle time after the
injection of several samples because higher-molecular-weightr creosote
components accumulated on the column and performance deteriorated without the
extra bake cycle.
Semivolatile Orqanics
Phenols and polynuclear aromatics were determined by solvent extraction
and fused silica capillary column GC/MS. An extract prescreening procedure
using GC with FID determined the appropriate extract concentration factors
prior to GC/MS analysis. "I he prescreening was especially important with
certain sample types (oil/water separator samples) which were extremely
variaole in content.
Two ca^es of contamination were detected during the course of the
study. The XAD-2 blanks contained 10 to 200 ug of naphthalene. This is an
XAD-2 contaminant as received from the manufacturing process and indicates an
insufficient washing process prior to field sampling. Ony trace levels of
other arsalytes (1 to b vg) were detected on the XAD-2. During the GC/MS
injection of a series of thick creosote extracts, a serious
cross-ccntamination was detected,. As much as 0.1 percent sample-to-sample
93
-------
TABLE A-6. F'JSED SILICA UPILIARY COLUMN PARAMETERS
Column:
30rn x 0.2C n SE-54 k'COT (JS.V.1 Scientific)
Split]ess Injection Parameters:
Injection mode: Solitless
Sweep initiation: 30 sec
Sweep flow: Greater than or equal to 12 ml/min
Column flow (He)
measured at
atmospneric: 1.0 ml/min
Interface:
Temperature: 300°C
Column directly coupled to source (no transfer lines)
Temperature Program:
Initial: 30°C for 2 niin
Program.- Ramp to 300°C & 10°C/min
Hold: 300°C, 15 min
Mass Spectral Parameters:
lonization mode/
energy: Electron impact/70 eV
Total scan time: 1,0 sec
Mass range: 35 to 475 AMU
99
-------
iw.e-
PIC
RtC
ei-05'81 15il3:09
SAMPLE: «8?-13-ei5-8 UOfl.lUL IMJ .(5F=l.g
RwHGE: G I. <99 LBBEL: fl 1?. -1.0 OU«H: A 0,
S5
s «1
HI
BH'E: U 2fl. 3
SCflMS
i ro 4.10
Peak Identifications:
C
IS
Solvent Contaminant
Internal Standard
Benzene
Figure A-8. Total ion current chromatogram of a volati'les standard.
100
-------
183.9-1
DATA: P5T02 »1
16:28tP» COL1- Fi'4i HI
SAMPLE: ST02.ftMTiWE WM,llA.= ieNG EftCH CHPO
P3NGE: G 1- 40(3 LAPEL: H 0. 4.0 OIMN: A 0, 1.0 f«£E: U 20.
bo
SCANS
1 TO 40r.
Peak Identifications:
B « Benzene
C " Solvent Contaminant
E « Ethyl benzene
IS " Internal Standard
T - Toluene
E
3F.il
Figure A-9. Total ion current chromatogram for a retort drip
volatiles analysis.
101
-------
contamination was detected v.hen usino l-ul capillary syringes. No method for
routine cleaning of these syringes could be found. However, no such problem
was detected with standard 10-ul syringes.
In the dirtipst creosote samples, the overall retention time of many
compounds varied from that measured in the standards. However, the retention
time relative to a nearby eluting internal standard was a reliable
indentification criterion. Special care was needed with the benzo(a)pyrene
isomers. Figure A-iO shows the M/F. 126 and 25L exracted ion current profiles
for one of the creosote samples. Although standards were not available, the
other isomers were tentatively identified as listed. The two
benzofluoranthenes could not be reliably separated in the presence of so many
other compounds. It was decided to report these tivo as a single value for all
samples.
Figure A-ll shows the chromatograms from various spots in the creosote
preserving process. A few of the major peaks are identified in eacn
chrcmctogram. The creosote at this plant appears to be different from other
creosotes in that the phenol content is very low (400 ppm).
Table A-7 presents a Icj of all samples collected, followed by
Tables A-8 through A-21 which present the analytical data.
Figure A-12 shows samples from the pan evaporation process. It is
clear that the liquid left behind in the evaporator is concentrated in the
high-molecular-weight polynuclear species such as chrysene and
benzo(a)pyrene. These polynuclears do not volati?e to the same extent as the
low-molecular-weight species. Figure A-12(d) is a chromatogram of an XAD-2
blank extract. Of the compounds of interest, only naphthalene was detected i,.
the blank. Duplicate blank samples showed 100 and 140 pQ of naphthalene. The
XAD-2 cartridge extract shown in (d) is an 8,000-fold dilution of the total
extract. The quantitative result for this sample wa 2.8g of naphthalene for
the iOg sample.
Chromatograms for penta process samples are shown in Figure A-13. The
use of petroleum distillate as the penta vehicle complicates the chromatograms
immensely, since it also contains polynuclear aromatic hydrocarbons. The
concentration of penta in these samples, however, was sufficiently high for
reliable quantitation in the presence of the oil matrix. For lower
concentations than seen here, an adJHional sample preparation of neutrals
from acids would be necessary.
Figure A-14 shows chrcmatograms from the penta wastewater evaporation
process. Penta was detected in the XAD-2 cartridge. However, the
hydrocarbons appear to the preferentially evaporated as evidenced by the
concentration of penta in the pan bottoms. No contamination from penta was
seen in XAD-2 blanks.
102
-------
SIC X.-SS O^CWiA.HjWft DA1A: AM '. VI Utt
CI.VO'tM
-------
i a o. I.ft BuSLt U J
(a) Creosote oil/water separator top layer
_ iiJbU^
(b) Creosote oil/water separator -- bottom layer
Figure A--11. Chromatograms of creosote solutions through the process.
104
-------
tt I. A Wit i U J
I
(c) Creosote working solution
(d) Creosote retort drips
Figure A-1.1. Concluded
105
-------
TABLE A-7. SAMPLE NUMBER AND IDENTIFICATION
Sample No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Sample Description
Pond, top layer w/oil, 1 of 2
Pond, top layer w/oil, 2 of 2
Pond, sludge
Pond, middle layer
Creosote pan evap. liquid, 1700, 9/23/80
Creosote oil /water separator, top layer, 9/23/30
Creosote oil/water separator, boctom layer, 9/28/80
Creosote retort drips, 1158, 9/23/30
Penta fugitive emission, front half
Penta fugitive emission, back half
Penta retort drips, 1138
Penta oil /water separator, top layer
Creosote pan evap. liquid and impinger HjO, frjnt half
Creosote pan evap. liquid jnd impinger 1 h^O, front half,
rinse
Creosote pan evap. liquid and imoingers 2 and 3 HpO, test 1,
back half, rinse
Creosote oil /water separator, top layer
Creosote oil /water separator, bottom layer
Creosote pan evap. liquid, pretest
Creosote pan evap. liquid, test 2, front half
Creosote pan evap. liquid, test 2
Creosote pan evap. liquid, test 2 probe rinse
Penta pan evap. liquid, test 2 impinger H?0
Penta pan evap. liquid, test 1, front half rinst
Penta pan evap. liquid, pretest 1
Penta pan evap. liquid, test 2
Penta pan evap. liquid, test 1, back half
Penta fugitive emission, test 2, front half
Penta pan evap. liquid, test 2, front half
Penta oil/water separator, top layer
Penta pan evap. liquid, test 1, back half rinse
Penta pan evap. liquid, test 1, front half, impinger t^O
Penta oil/water separator, bottom layer
Penta pan evap. liquid, test 2, impinger H^O
Penta pan evap. liquid, test 4, impinger H^O
Penta pan evap., bottoms from value 6 in. off ground
Penta retort fugitive emission, test 3, impinger H^O
Penta pan evap. liquid, test 3
Penta 40 percent solid in No. 2 fuel oil
Penta retort fugitive emission, test 3, front half, MeCl^
rinse
Penta pan evap. liquid, test 3, fron half, MeCl? rinse
106
-------
TABLE A-7. Concluded
Sample No. Sample Description
41 Penta pan evap. liquid, test 4, front half, MeCl2 rinse
42 Penta oil/water separator, bottom layer
43 Penta retort drips
44 Creosote pan evap. liquid, test 4, impinger H?0
45 Creosote pan evap. liquid, test 3, impinger HjO
46 Creosote pan evao. liquid, test 3, front half
47 Creosote pan evap. liquid, test 4
48 Creosote retort fugitive emission, test i, front half, impinger
H20
49 Creosote oil/water separator, bottoji iayer
50 Creosote retort fugitive eTnisson test 1, front half, MeCI-2
rinse
51 Penta oil/water separator, top layer and oil
52 Creosote pan evap. liquid, test 3
53 Creosote pan evap. bottoms
54 Creosote retort drips
55 Creosoxe pan evap. liquid, test 4, front half, MeCl.2 vinse
56 Creosote oil/water separator, top layer
57 Creosote working solution, tank 5 (new)
58 Penta working solution, as used
59 Penta pan evap. liquid, test 4
60 MeCl2 blank, baker res. anal.
61 Viking D1H20, all tests after 9/24
62 Well No 4
63 XAD, penta pan evap. liquid, test 1
64 XAD blank No. 2
65 XAD, penta pan evap. liquid, test 4
66
67
68 XAD, creosote pan evap. liquid, test 4
69 XAD, creosote pan evap. liquid, test 3
70 XAD, creosote pan evap. liquid, test 1
71 XAD, penta fugitive emission, test 1
72 XAD, creosote pan evap. liquid, test 2
73 XAO, penta fugitive emission, test 2
74 XAD, creosote pan evap. liquid, test 3
75 XAD, penta fugitive emission, test 3
76
107
-------
TABLE A-8. WOOD PRESERVING TEST RESULTS
TEST CPEOSOTE PAN EVAP TEST 1
TEST DATE 9/23/80
COMPOUND Acurex I.D. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzof 1 uoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzc( a, h) anthracene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
Liquid
-5
2.3
<0.5
7.8
33
15
7.5
13
12
76
12
3.2
50
35
0.7
3.0
6.5
<0.1
0.1
0.5
3W Sep Top i
-6
0.5
15
7.0
30
11
3.9
10
7.6
36
8.2
1.4
25
20
<1
<1
5.8
0.1
0.1
<0.1
CW Sep Bot
-7
360
<100
3500
18000
9800
2400
2200
5300
2200
300
<100
11000
2500
120
<100
680
26
140
44
XAD
-70
0.45
0.08
0.67
2.0
0.009
<0.01
<0.01
0.007
0.061
0.33
-------
TABLE A-9. WOOD PRESERVING TEST RESULTS
TEST CREOSOTE
JESLJ.
TEST DATE
9/23/80
COMPOUND Acurex I.D. $
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzof 1 uoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(a ,h)anthracene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
Retort'Drips
-8
390
<20
420
1300
870
240
700
710
72
1200
<50
1100
2300
<50
<50
370
0.3
<0.2
<0.2
NOTE:
Fugitives
y/25/80 w
this XAD
mistake.
cashes from
re added to
ample by
All concentrations in units of micrograms per gram except for XAD collections
which are total milligrams collected.
109
-------
TABLE A-10. WOOD PRESERVING TEST RESULTS
TEST CREOSOTE PAN EVAP
TEST 2
TEST DATE 9/24/80
COMPOUND Acurex I.D. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo (a) anthracene
Benzo(a)pyrene
Benzof 1 uoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenarithrene
Dibenzo(a,h)anthracene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
re Test
i<-|U id 8:30
-18
3.4
11
20
13
14
24
5.7
8.9
1.2
9.9
0.6
2.5
3.2
0.9
0.7
16
<0.1
<0.1
<0.1
O.W. Sep Top
-16
12
7
20
42
10
2
4
10
2
1
0.2
16
19
0.2
0.3
15
<0.1
<0.1
<0.1
O.W. SepBot| KAD
-17
3600
1500
33000
33000
23000
610
530
19000
3400
69000
<500
38000
41000
<500
<500
27000
<50
<50
<50
«
i
-72
<0.1
23
38
310
0.6
<0.05
0.08
0.5
11
49
<0.1
170
150
<0.1
<0.1
24
NA
NA
NA
All concentrations in units of micrograms per gram except for XAD collections
which are total milligrams collected.
110
-------
TABLE A-ll. WOOD PRESERVING TEST RESULTS
TEST CREOSOTE PM EVAP
TEST 2
TEST DATE
9/24/80
ia-jid >>2
COMPOUND Acurex I.D. #
80-10-015- 1
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzofl uoranthenes
Chrysene
Acerwnhthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(a ,h)anthracene
Indeno(l,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
-20
13
14
64
18
41
1.7
2.1
26
3.7
26
< 0.4
75
91
0.4
< 0.4
48
< 0.1
< 0.1
< 0.1
All concentrations in units of micrograms per gram except for XAD collections
which are total milligrams collected.
Ill
-------
TABLE A-12. WOOD PRESERVING TEST RESUiTS
TEST CREOSOTE PAN EVAP
TEST DATE 9/25/80
TEST 3
COMPOUND Acurex I.D. f
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzofluoranthenes
Chrysene
Acenaphthylene
Anthracene
Ben;o(ghi)perylene
Fluorene
Phenanthrene
Dibenzofa ,h)anthracene
Indeno(1 ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
Liquid
-52
7.5
31
9.3
10
4.5
0.6
1.4
3.7
0.3
2.8
<0.1
8.9
15
<0.1
0.1
6.7
<0.1
<0.1
<0.1
Pan Bottoms
-53
260
30
599
680
390
91
190
240
840
260
10
660
1100
<10
16
440
6.7
1.4
0.3
Min9
-57
1700
400
32000
24000
20000
500
650
15000
5700
12000
<500
'3COOO
37000
<500
<500
27000
26
2.7
<0.5
XAD
-74
2.8
60
20
2800
1.4
0.25
0.69
1.2
30
70
<0.1
560
200
<0.i
<0.1
13
NA
NA
NA
All concentrations in units of micrograms per gram except for XAD collections
which are total milligrams collected.
112
-------
TABLE A-12. WOOD PRESERVING TEST RESULTS
TEST
-JEST 3
TEST DATE
COMPOUND Acurex I.D. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo (a) anthracene
Benzo(a)pyrene
Benzof 1 uoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)pery";ene
Fluorene
Menanthrene
Dibenzo(a,h)anthracene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
Retort 'Drips
-54
1800
<10
200
1400
1000
200
500
850
180
1500
40
2600
2200
20
52
1700
15
<1
<1
All concentrations in units of micrcgrams per gram except for XAD collections
which are total milligrams collected.
113
-------
TABLE A-14. WOOD PRESERVING TEST RESULTS
TEST CREOSOTE PAN EVAP
TEST
TEST DATE 9/25/80
COMPOUND Acurex I.D. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo (a) anthracene
Benzo(a)pyrene
Benzof 1 uoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Diben?o(a ,h)a>rithracene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
Liquid
-47
0.5
35
6.0
6.4
2.4
C.4
0.3
1.9
0.2
1.4
<0.1
6.0
12
<0.1
<0.1
4.2
3.4
<0.2
0.3
OW Sep Top
-56
8.3
5.2
140
200
60
6.1
15
50
6
56
<10
110
190
<10
<10
100
<0.1
<0.1
<0.1
OU Sep Bot l XAD
-49
1300
800
13000
38000
9200
3COO
500
5400
5700
8000
730
35000
22000
1500
1300
10000
27
0.5
6.8
-68
2.0
<0.4
27
'800
1.5
0.40
1.7
1.1
56
56
<0.4
740
330
<0.4
<0.4
20
NA
NA
NA
All concentrations in units of micrograms per gram except for XAD collections
which are total milligrams collected.
114
-------
TABLE A-15. WOOD PRESERVING TEST RESULTS
TEST PCP PAN EVAP
TEST 1
TEST DATE
9/2?/80
COMPOUND Acurex I.D. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzof 1 uoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(gh1)perylene
Fluorene
Phenanthrene
u1benzo(a ,h)anthracene
Indeno(l,2,3-cd)pyrene
Pyrene
Benzene
Tolusne
Ethyl benzene
Retort Drips
-11
1500
< 10
29
50
60
50
54
50
16
47
< 10
110
150
< 10
< 10
24
< 0.5
< 0.5
< 0.5
OW Sep Top
-12
25000
<10
21
1800
<10
20
20
60
200
240
<10
1500
3000
< 10
< 10
< 10
<0.5
65
41
XAD
-71
<0.01
<0.01
0.012
0.026
<0.01
<0.01
<0.01
<0.01
0.062
0.012
<0.01
<0.01
0.14
<0.01
<0.01
-------
TABLE A-16. WOOD PRESERVING TEST RESULTS
TEST PCP PAN EVAP
TEST 2
TEST DATE
9/24/80
COMPOUND Acurex I.D. # «
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzofluoranthenes
Chrysene
Acenaphthylane
Anthracene
Benzo(ghi)peryler.e
Fluorene
Phenanthrene
Dibenzo(a ,h)anthracene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
Liquid 17:15
-25
70
1.2
5.2
0.1
1.6
0.1
<0.1
1.2
0.1
0.4
<0.1
0.3
2.6
<0.1
-------
'ABLE A-:V. '.> COD FRF'^VII.r. TEST RTSUi T5
TEST PCT_PA^
TEST GATE 9/24/30
TEST 2
1
COMPOUND Acure* I.D. «
80-10-015-
Pentachlorophenol
Pheno1
Fluoranthene
Naphthalene
Benzo(a)anthracer.e
Benzo(a)pyrene
Benzoflucranthones
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(a,h)anthracene
Indeno(l ,2,3-cd)pyrene
Py.-ene
Benzene
Toluene
Ethyl benzene
J7- id 9; 00
-24
140
0.5
7.9
0.4
3.7
0.1
0.1
3.7
0.1
1.2
< 0.1
1.4
9.5
<0. 1
<0.1
6.1
--0.1
<0.1
<0.1
Fug i live XALi
-73
5.0
1.3
<0.1
3.6
<0.1
<0.1
<0.}
<0.1
0.18
0.03
<0.5
0.2
0.3
<0.5
<0.5
<0.1
NA
NA
NA
i
All concentrations in units of
which are total mil1igrams col
rnicrograms per gram except for XAD collections
lected.
117
-------
TABLE A-1S. WOOD PRESERVING TE3I RESULTS
HOOD PRESERVING T££" RESULTS TEST L^LfAN-iVA_p_
TEST DATE 9/25/80
TEST 3
1
COMPOUND Acurex I.D. #
60-10-015-
Pentachlorophenol
Phenol
Fluoranthpne
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzofluoranthenes
Chrysene
Acenaphthyleae
Anthracene
Benzo(ghi)perylene
Fluo-ene
Phenanthrene
Dibenzo(a ,h)anthracene
Incteno(1,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
".,.,.
LiCJ'iD
-37
70
0.4
2.7
0.1
1.4
< 0.1
< 0.1
1.0
0.3
0.4
< 0.1
2.6
2.4
< 0.1
< 0.1
2.0
< 0.2
< 0.2
< 0.2
O.W.^CP TOP
-51
.45,000
<10
2,800
2,000
430
96
320
400
370
1100
7
2400
4000
<10
23
1900
1.2
77
2.3
JO.W. SEP BO
-42
> 980
<10
2,000
220
290
68
190
420
1600
400
< 20
2100
3600
<20
<20
1300
0.2
0.1
1.2
PAN BOTTOMS 1
-35
62
1.2
2.0
1.1
0.5
0.05
0.2
0.4
0.05
0.5
<0.1
1.0
3.5
< 0.1
< 0.1
1.4
<0.2
0.3
<0.2
All concentrations In units of micrograms per gram except for XAD collections
wdich are total milligrams collected.
113
-------
TABLE A-19. WOOD PRESERVING TEST RESULTS
TEST PCP PAN EVAP TEST 3
TEST DATE
9/25/30
COMPOUND Acurex 1.0. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracenc
Benzo(a)pyrene
Benzofluoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
D1benzo(a,h)anthracene
Indeno (1,2, 3- cd)pyrene
Pyrene
Benzene
Toluene
1 Ethyl cenzene
"TATf-
-69
45
j
0.35
6.8
3.9
0.33
< 0.3
< 0.3
0.34
1.7
3.0
< 0.5
4.0
12
<0.5
<0.5
4.2
NA
NA
NA
Fugitive XAI
-/b
1.7
< 0.01
0.012
1.2
<0.01
<0.01
<0.01
<0.01
0.074
C 019
<0.01
0.30
0.18
<0.10
<0.10
0.01
NA
NA
NA
40X PCP0j?
)C
-Jo
V490,000
<1 ,000
<1,000
< 1,000
<1,000
<1,000
<1,000
<1,000
<1,000
<1,000
<5,000
<1,000
<1,000
<5,000
<5,000
<1,000
<10
12
31
Retort Drips
-43
2100
<10
180
200
80
5.6
26
85
11
55
<5
140
320
<5
<5
140
0.1
0.5
0.5
All concentrations in units of m'crograms per gram except for XAD collections
which are total milligrams collected.
119
-------
TABLE A-20. WOOD PRESERVING TEST RESULTS
TEST PCP PAN EVAP
TEST 4
COMPOUND Acurex I.D. #
80-10-015-
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrcne
Benzof 1 uoranthener
Chryser.e
Acenaphthylene
Anthrccene
Benzo(ghi)peryle.ie
Fluorene
Pherwnthrene
Diben?.o(* ,h)anthracene
Indeno-1 ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
PCP Working
Soln.
-5R
44000
< 200
430
3800
<100
<100
<]QQ
<100
170
230
<200
1100
1700
<200
<200
350
<1
18
23
TEST DATE
Liquid
-59
41
0.3
1.2
0.3
0.9
<0.1
<0.1
0.7
0.1
0.2
<0.1
1.7
1.5
<0.1
<0.1
0.9
<0.2
0.2
0.2
9/25/80
XAD
-65
2* ,0
420
1400
4700
160
<10
35
150
300
600
<10
1400
12CO
<10
<10
1100
NA
NA
NA
~*
1
All concentrations 1n units of micrograins per gram except fcr XAD collections
which are total milligrams collected.
120
-------
TABLE A-21. WCOO PRESERVING TEST RESULTS
WOOD PRESERVING TEST RESULTS TEST Plant D
TEST SITE:
TEST DATE 11/19/30
Field
COMPOUND Acurex I.D. 1
A80-11-043
Description
Pentachlorophenol
Phenol
Fluoranthene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrer,e
Benzofluoranlhenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi )perylene
Fluorene
Phenanthrene
Dibenzo(a.h) anthracene
Indeno(1 ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
116"
-93
Sludge
550
<1.0
3.3
17
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
9.3
35
<1.0
<1.0
1.7
NA
NA
NA
121
-104
Sludge
KA
^
r
<0.02
<0.02
<0.02
117
-94
Aeration Ta
2.4
0.2
<0.01
0.05
<0.01
<0.01
<0.01
<0.01
0.01
0.01
<0.01
0.03
0.04
<0.01
<0.01
<0.01
NA
NA
NA
120
-103
Tk Aeration T;
HA
<0.005
<0.005
<0.005
All concsntratlons in unHs of mlcrograms per grar except for XAD collections
which are total milligrams collected.
121
-------
TABLE A-?l. Concluded
WOOD PRESERVING TEST RESULTS
TEST SITE:
TEST
Plant D
TEST DftTE 11/19/30
'Field I.D ^ llff j
COMPOUND Acurex I.D. #
A80-11-043
Description
Te"niacntorop:ieno1
Phenol ;.
Fluoranthene
Naphthalene
Benzo(a )anthracene
Benzo(a)pyrene
Benzoflijoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(a ,h)anthr<)cene
Indeno(l ,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethylbenzene
-^
Condenser
32
2.4
1.8
3.2
0.3
<0.1
<0.1
0.3
0.2
0.6
<0.1
1.8
3.7
<0.1
<0.1
1.1
NA
NA
NA
119
-102
Condenser
MA
\
*/
0.02
0.13
0.04
1
|
All concentreticns 1n units of micrograms per gram except for XAD collections
which are total milligrams collected.
122
-------
fll 1C: (4-M
I a*-i*-* ^-tr a* CLHC tu in
. c , ^-w LA«I! N e. ^-e
(a) Creosote charge liquid to pan evaporator
JjUMnJAKjLUiJ^
Figure A- 12.
(b) Creosote partially evaporated liquid
Chromatograms from creosote wastewater pan evaporation process.
123
-------
JWfl VcM
(c) XAD-2 blank
rtii C 1.22*9 l-*tLt H t). 4.S i*>*4: A 0 l.fe Prtbti 0 y«.
sows toe 10 2
(d) Creosote pan evaporator XAD-2
Figure A-12. Concluded
124
-------
:'i
(a) Penta working soljtion
i^t^, a 0 i a
(b) Penta retort drips
Figure A-13. Chromatoqrams of penta process samples,
125
-------
3! I
k*'1
f
P.Si
Hi
(c) Penta oil/water separator bottom layer
i; te«B n.«; «
v**Vfi >.«r itf «>) i; i
R^MZt & I,;. . i^I
ll
1
(d) Penta oil/water separator -- top layer
Figure A-13. Concluded
126
-------
L
y> (»« Ci«C IlX 1-X-^Ml Of. 18 IJ
LiliULr M «l 4,0 &mi (4 e, '.9 (rfSf i U W. 3
I i
lk ^'
(a) Penta pan bottoms
(b) Penta XAD-2
Figure A-14. Chromatograms of samples from penta evaporation process.
127
-------
«*.; iw ro ;2»
(c) Penta test liquid
Figure A-14. Concluded
128
-------
APPENDIX 8
CHAP^CTERIZATIO1, OF MULTIMEDIA EMISSIONS FROM
SPRAY EVAPORATION OF WOOD PRESERVING WASTEWATERS
Raw data for sample identification and field aata on this study has
been compiled and is available upon request. Copies may be obtained from EPA
lERL-Ci 26 W. St. Clair Street, Cincinnati, OH 45268 (513/684-4227).
This'field test program was carried out at plant B and is described in
Section 6.
B.I TEST SITE
Table B-l presents a sunmary of the treated wood production for the
field test period. Figure 3-1 presents a photograph of the pond in operation.
B.2 FIELD TEST PROGRAM
The following subsections describe the methods and procedures employed
during sampling.
TABLE B-l. TREATED WOOD PRODUCTION DURING SAMPLING PERIOD
Period 11-18-80 to 11-20-80
Creosote Penta
11-18
11-19
11-20
ni
39
85
40
-
.7
. 3
. 'j
1
3
1
ft3
,403
,013
,432
Tl
77
77
86
.0
.8
.1
f
2
2
3
t3.
,721
,749
,039
Total 165.5 5,P,43 240.9 8,509
Southern yellow pine utility nolcs
129
-------
U)
o
Figure B-l. Photograph of spray pond.
-------
8.2.1 Fugitive t^ission SaTfliruj at the Sorav
Sampling of fugitive emissions from the spmy pond was conducted using
the concentration profile apparatus (CPA' developed by the University of
Arkansas, College of Engineering, Fayettevil ie, Arkansas. The CPA as -jsed
during the field test program consists of three devices and some auxiliary
saoport equipment as folios.
Wind velocity profile and direction indicator
This device consists of a mast with CUD anemometers positioned at
20 err,, 40 on, 30 cm, 160 cm, 240 cm and 320 cm and a wind direction vane
mounted on top. Anemometer rotation speed and wine' direction is transmitted
to appropriate recorders operates by a 12-volt (lead/acid) battery. The unit
was ootained from C. W. Thorntwaite Associates (Model 106). Figure B-2
presents a diagram of the device as assembled for field use.
Dry bulb temperature device
This device consisted of a small metal cup filled with modeling clay,
centered in a short section of white PVC pipe to shield the clay from radiant
energy. These units were mounted on the mast with the cup anemometers using
the same spatial arrangement described for the wind velocity profile mast.
The temperature or the clay was measured periodically using a hand-held Doric
digital temperature indicator and a small RTD thermocouple. Figure B-2 also
presents a diagram of the dry bulb temperature devices as they were used in
the field.
Air sampling device
This assembly is not an off-the-shelf item but was designed and
constructed by the University of Arkansas College of Engineering. The device
consists of a 2m mast equipped with holders at six positions for small
(300 ml) Dewar flasks and U-tubp cryogenic traps. Tube extenders, upstream of
the traps, allow precise sample heights to be chosen and maintained. The
downstream side of U-tube traps are connected to Matheson No. 602 air
rotometers. Flow was maintained by a portable hand-evacuated vacuum tank which
was modified during the course of testing to operate from a Thomas Teflon
diaphragm vacuum pump. Figure B-3 presents a diagram of the construction
details for this device. Figure B-4 presents a detailed construction view of
the Dewar flask bracket assembly. Figure B-5 presents a photograph of the CPA
in sampling position.
Sampling fugitive emissions from the spray ponds was performed using
the CPA in conjunction with three different sample collection methods. rhese
included cryogenic U-tube traps, and Tenax and XAD-2 nicroreticular
adsorbents. in all cases the sampled gas/aerosol was routed through a
special ly irtodi fied midget impinger prior to entry into the appropriate sample
trap. The midget impingers modified the Smith-Greenburg design by shortening
the impinger stem which raised the impact.ion plate above the liquid collection
area. The purpose of this modification was to separate and collect the
131
-------
f w\ mj d'. r^ct ion
/ "
j ' jJTt
4p ^T0'
B-?. Diagram of wind velocity profit: and direction indicator
and di y bulb temperature devic/>.
13?
-------
Figure 8-3. Construction details of air sampling device.
133
-------
F To rrnan-.eler
Upright
to mast
V Swa'jelor. bulkhead union
Sample tube
V Swaaelok
uni on
Figure E-4. Detailed construction view of the Pewar flask bracket assembly.
134
-------
Figure B-5. Photograph of CPA in sampling position
135
-------
aerosol fraction of the sampled stream, ultimately extending the effective
sampling time of the cryogenic U-t'jbe traps by limiting the amount of
freezable material entering the trap. Figure B-6 presents a diagram of the
modified Smith-Greenburg midget impinqer. The modified impinners were used in
conjunction with all three samplina methods for the purpose of uniformity.
Cryogenic U-tube traps were constructed from 316 stainless steel
tubing, 1/4-inch O.D. 0.020-inch wall thickness. Each tube was packed with
glass beads ranging in size from 1.00 to 1.05 mm, purchased from B. Braun
Melsungen, AKT1ENGESELLSCHAF7, W. Germany. A small pyrex glass wool plug was
inserted into each end of the packed U-tubes to retain the beads. Figure B-7
presents a diagram of the completed sampling device. Prior to use in the
field the tubes were cleaned.
To effect sampling with the cryogenic U-tuhes, the CPA was positioned
at the optimum downwind location of the spray pond. The sample devices then
were affixed to the CPA at the appropriate heights, with the body of the trap
immersed in a liquid oxygen (LOX) bath. After sealing the sample inlet end of
the U-tube, a leak test was perforated by apolying at least 10 inches of
Mercury vacuum to the system and checking the rotometers for flow indication.
If flow was noted, appropriate measures were taken to correct the leak.
After completion of a successful leak check, the special!v modified
midget impingers were connected and the actual sampling was begun. During the
sampling period, the flow through each sample was maintained at 100 cc/min by
adjusting the fine flow control valve mounted at the inlet of the rotometer.
Figure B-8 presents a photograph of the cryogenic U-tube sampling device in
sampling position (immersed in LOX bath).
The sample trial was terminated when two or more sample U-tubes became
so restricted with frozen material and it was no longer possible to maintain
the desired flow rate.
At the completion of samplir.g, the midget impinger and sample U-tubes
were removed from the CPA and sealed. The U-tubes were placed on dry ice and
maintained under dry ice conditions for their transport, to the Mountain View,
CaMfornia laboratory. The modified Smith-Greenburg midget impingers were
analytically rinsed with methylene chloride in the field laboratory. All
rinses were collected and stored in precleaned 50 ml Wheaton glass sample
vials with Teflon-lined septum caps. Rinses with methylene chloride prior to
the next sample run were retained as blank solvent samples for that run.
The second type of trap for sampling in conjunction with the CPA
utilized Tenax-GC microreticular adsorbent resin. The Tenax traps were
constructed from 1/4-inch O.D. 2-mm bore ptrex tubing cut to 4-inch lengths.
Prior to packing with Tenax, the tubes were muffled at 400°C for 4 hrs. The
tubes w?re packed with Tenax GC, 80/100 mesh, using a small swatch of pyrex
glass wool (also muffled) in each end to hold the adsorbent in place. The
tubes were attached to the CPA with 316 stainless steel Swagelok nuts and
Teflon ferrules to ensure a leakfree seal. Figure B-9 presents a diagram of
the completed Tenax trap sampling device.
136
-------
Swagelok nut
To sample
trap
Sample inlet
12/Srm Sphtricai
ball joints
Taoer seal
Figure B-6. Diagram of modified Smith-Greenburg midget impinger
137
-------
316 Stainless steel
swage I ok nut
Pyrex glsss wool
6"
1.00 to 1.05mm
glass bead packing
316 Stainless steel tube
V O.D. x .020" wall
Figure B-7. Cryogenic U-tube construction,
138
-------
Figure B-8. Photograph of cryogenic U-tube sampling device in Sampling
position (immersed in LOX).
-------
Teflon ferrolf
316 stainless steel Swage lot nut
Pyrex glass wool insert
Pyrex glass capillary tube
Tenax GC adsorbent
1/4"
T
Figure B-9. Diagram of Tenax trap sampling device.
-------
Sampling with the Tenax traps was conducted in the same manner as
described for the cryogenic U-tube traps, except the Tenax traps were operated
at ambient temperatures. Also, the sampling duration was increased to
approximately 120 min since the Tenax traps are not prone to flow restrictions
caused by a buildup of frozen material. Figure B-10 presents a photograph of
the Tenax trap sampling device and Smith-Greenburg midget impinger in sampling
position.
The XAD-2 sampling device utilized XAD-2 adsorbent resin. The traps
were constructed from 5-inch lengths of 1/2-inch 0.0. 316 stainless steel
tubing. Each end of the tubing was fitted with 1/2-inch to 1/4-inch Swagelok
reducing tube unions to connect the trap to the CPA. Prior to packing the
tubes with XAD-2 resin, the entire unit was muffled at 400°C for 4 hrs. The
traps were then packed with XAD-2 resin, 80/100 mesh, using a small swatch of
pyrex glass wool (also muffled) inserted in each end to retain the packing.
Figure B-ll presents a diagram of the completed XAD-2 sampling device.
Sampling with the XAD-2 traps was conducted in the same manner as
described for the Tenax sampling devices. Figure B-12 presents a photograph
of the XAD-2 sampling device and modified Smith-Gre^nburg Midget Impinger in
sampling position.
B.3 ANALYTICAL METHODS AND RESULTS
Samples from the spray pond test site were received on November 25,
1980. The samples were assigned consecutive laboratory identification numbers
and stored at 4°C until analyzed.
Analyses were conducted for volatile and semivolatile organics.
Volatile organics analyses were based on variations to EPA Method 624.
Semivolatile organics (phenols and polynuclear aromatics) analyses were based
on sample preparation variation to EPA Method 625 in conjunction with fused
silica capillary column GC/MS.
B.3.1 Analysis of Volatile Organics
The analytes of interest were benzene, toluene, and etiiylbenzene. The
sludge wastewater and Tenax trap samples were analyzed for these components.
A l.Og aliquot of the mixed sludge was weighed into a 15-ml crimp top
vial. Pentane (9 ml) and l-brom-2-chlorpropane (10 yg) were added as internal
standards. A l-nl aliquot of this diluted sample was injected in a
0.2-percent Carbowax 1500 on a Carbopack C packed GC column in a Finnegan 1020
GC/MS instrument. Analysis and quantitation were conducted per EPA Method 624
using the internal standard method.
Quality control for the volatiles analysis entailed the analysis of a
method blank and a method standard spiked at 10 yg of sludge.
141
-------
Figure 8-10. Photograph of Tenax trap sampling device and modified
Smith-Greenburg midget impinger in sampling position.
-------
-O
O-l
316 st«inle5? steel 1/2" O.D. x 0.0.15"
wall tubing
XAD-2 sdsorbent
1
-J
in
X
/ 1
T 1
..-:'; ;.. ';!: ..V-^i ' .:>,:- ;- '::;--:. '\X --^- :-:^- IV i'- :':::^ "-^
X xV
tei
^
1
i _L
±
I/I-." 1/2"
T T
1 t
316 stainless steel Swagelok
1/2" to 1/1" reducing union
Figure B-ll. Diagram of XAD-2 trap sampling device.
-------
Fiqure B-12. Photograph of XAD-2 sampling device and modi
Srcith-Greenburg midget impinger in sampling position.
-------
i^ater Samples
Water samples were analyzed for volatile organics using EPA Method 624
and 1- to 5-ml samples. The surrogate compounds d^-benzene and dg-toluene
were added to each sample.
Tenax Traps
Traps were prepared from Tenax GC (Applied Science) in 1/4 x 4 inch
glass tubes. Prior to sampling, every trap was spiked with dg-benzene
(100 ng) to index recovery of the trapped samples.
The exposed Tenax trap contents were transferred to the laboratory in
the 12 x 1/8 inch stainless steel tubes used in the Tekmar LSC2 purge and trap
dev;ce. The reassembled traps were purged with helium to remove air and then
thermally desorbed for analyses per EPA Method 624.
B.3.2 Analysis of Semivolati1e Organics
Semivolatile organics analyzed are listed in Table 8-2. These analyses
were conducted by variations to EPA Method 625 in the sample preparation and
use of fused silica capillary colum GC/MS to determine these compounds.
TABLE B-2. SEMIVOLATILE ORGANICS ANALYZED IN WOOD PRESERVING SAMPLES
Compound Name
1 Phenol
2 2-Nitrophenol
3 2y4, Dichlorophehol
4 2,4,6 Trichlorophenol
5 4-Nitrophenol
6 4,6-Di.ii tro-0-cresol
7 Pentachlorophenol
8 Acenaphthene
9 Fluoranthene
10 Naphthalene
11 l,2-Benz(a)anthracene
12 Clvysene
13 Acenaphthylene
14 Phenanthrene
15 Fluorene
16 Pyrene
17 Benzofluoranthenes
18 Benzo(a)pyrent
145
-------
Sample Preparation
The following procedure was ued to prepare sludge samples:
1. Place 10. Oq of the sludqe in a clean 25D-ml brown bottle. Add
10. Oq of anhydrous sodium sol fate .and 100 ml of pesticide grade
dichloromethane. Shake occasionally and allow to sit overnight at
room temperature.
2. Take 1.0 ml of each extract of GC/FID screening. Store the
renaming extract at 4°C.
3. As required by the GC/FIO screening, filter the extract into a
Kuderna-Danish concentrator and concentrate to 1.0 ml.
The GC/FID screening stage was necessary due to the wide variability of
sample concentrations. Figure 8-13 summarizes the semivolatile extraction
scheme for sludge samples.
XAD-2 Cartridges
The XAD-2 cartridge was carefully opened, any silicone stopcock grease
was removed with a Ch^Cl? wetted towel, and the contents transferred to a
preextracted Soxh'et thimble. The XAD-2 material in the Soxhlet was spike
with surrogate mix and extracted overnight with CH2 Cl;?. The extract was
concentrated to I to 100 ml based on the amount of extractable material
present.
Quality control for XAD-2 samples consisted of the analysis of
surrogate spikes, field blanks, and spiked method blanks.
Impinqer Catches
Midget implnger catches were composited for analysis in the
laboratory. Each composite
-------
ICg sample
Dry (Na,SO.)
and extract witn
10 fold CH2C12
Screen dilute
extract by
GC/FID
All peaks
in linear
GC/I-1S range?
Greatest peak
greater than
500 iig/ml?
Dilute
extract x 100
Proceed to FSCC
analysis
All peaks
less than
10 ,.
Concentrate
extract x 100
Figure B-l? proposed analysis scheme for phenols/PAH s in
wood preserving sludges.
147
-------
2. Adjust the pH of the sample to 12.0 with 6N NaOH.
3. Add approximately 30 ml of water and homogenize for a few seconds.
Add 60 ml of methylene chloride, homogenize briefly again, withdraw
the homogenizer, and rinse it into the sample with water then with
5 to 10 ml of methylene chloride.
4. Centrifuge the sample aliquot at 1,400 rpm for 5 min to reduce
formation of an emulsion layer at the water/me'.' vlene chloride
interface. Withdraw the extract using a 25-ml Mohr pipet.
5. Perform an additional two extractions by adding 60 ml methylene
chloride, homogenizing, and centrifuging as indicated above.
6. Acidify the sample to a pH less t^an 2 using 6N HC1. Add the acid
drop-by-drop with constant mixing to prevent foa;..ing.
7. Extract the sample again as described in Sections 1.3 to 1.6,
keeping the addition of water to a minimum.
8. Combine and dry the extracts by passing through a drying column
packed with 10 cm of anhydrous Na2SO^. Concentrate to a final
volume of 1 ml using a Kuderna-Danish apparatus equipped with a
calibrated receiver.
Extract Analysis
Each of the extracts obtained as described in the previous section was
analyzed for the compounds listed in Table B-2 using fused silica capillary
column GC/MS. The instrument operating conditions are listed in Table B-3.
The quality control requirements listed in EPA Method 625 were
followed, including analytical calibration, mass spectrometer tuning to meet
decafluorotriphenylphosphine (DFTPP) criteria, and the use of the multiple
internal standard quantitation method. The internal standards used were
dg-naphthalene, d^g-anthracene, and d^-chrysene.
B.3.3 Analytical Results and Discussion
The qualitative results from the spray pond test program are shown
below. The sample log which corresponds to this discussion is presented in
Table B-4.
U-tubes
Samples AS, A10, A12, A16, A20, A22, A24, and A7 were analyzed for
volatiles. Sample A20 contained benzene at 12 ng, toluene at 19 ng, and
ethylbenzene at 9 ng. All the others were not detected or less than 5 ng was
collected.
148
-------
TABLE B-3. FUSED SILICA CAPILLARY COLUMN PARAMETERS
Column:
30m x 0.25m SE-G4 WCOT (JoW Scientific)
Splitless Injection Parameters:
Injection mode:
Sweep initiation:
Sweep flow:
Column flow (He)
Measured at
atmospheric:
Interface:
Splitless
30 sec
+12 ml/min
1.0 ml/min
Temperature: 300°C
Column directly coupled to source (no transfer lines)
Temperature Program
Initial:
Program:
Hold:
Mass Spectral Parameters:
lonization mode/energy:
Total scan time:
Mass range:
30°C for 2 min
Ramp to 300°C at lO°C/min
500°C, 15 min
Electron impact/70 eV
1.0 sec
35 to 475 AMU
149
-------
TABLE 6-4. SAMPLE LOG
Sample No.
1
2
3
4
5
6
7
1A
2A
3A
4A
5A
6A
7A
8
9
10
11
12
13
B-l
B-?
B-3
C-l
C-2
C-3
C-4
C-5
C-6
C-7
C-8
C-9
14
15
16
17
18
19
20
21
22
23
24
25
26
Iiiipinqer f\o. IA
Imp inqer No. 2A
I nip inner No. 3 A
Impinqer No. 4A
Impinqer No, 5A
I,T\pinq2r No. 6A
Nell blank
LOX test no. 1, 1335 to 1358, 11-18-SO
Blank U-tube
Impinger No. 1A (XAD-2 B-l)
Impinger No. 2A (Tenax C-l)
Impinger No. 3A (XAD-2 B-2)
Impinger No. 4A (Tenax C-2)
Impinger No. 5A (XAD-2 B-3)
Impinqer fio. 6A (Tenax C-3)
Xad-2 cartridge, Run No. 1, 11-18-80
1502 to 1717
Tenax Trap, Run No. 1, 11-18-80
(Bottom)
Tenax Trap, Run No. 3, 11-19-8C
(Top)
Impinger rinse 1A
Impinger rinse 2A
Impinaer rinss 3A
Impinger rinse 4A
Impinger rinse 5A
Impinger rinse 6A
Mell blank
Impinger rinse 28
Impinger rinse 2B
Impinger rinse 3B
Impinger rinse 48
Impinger rinse 5B
Impinger rinse 6B
Impinger contents, test No. 3
11-19-80 (Ter.ax)
11-19-80
Impinger contents, test No. 3
11-19-80 (Tenax)
150
-------
TABLE B-4. Continued
Sample No.
A8
A9
AID
All
A12
A13
A14
A15
A16
A17
A1S
A19
27
28
29
30
31
32
33
34
35
36
37
38
B4
B5
86
B7
B8
89
39
40
41
42
43
44
45
BIO
Bll
B12
B14
B15
45
46
47
U-tube (Bottom)
U-tube
U-tube
U-tube
U-tube
U-tube (Top)
U-tube (Bottom)
U-tube
U-tube
U-tube
U-tube
U-tube (Top)
Impinger rinse IB (Bottom)
Impinger rinse 26
Impinger rinse 3B
Impinger rinse 4B
Impinger rinse 513
Impinger rinse 6B (Top)
Impinger rinse IB (Bottom)
Impinger rinse 2B
Impinger rinse 38
Impinger rinse 4B
Impinger rinse 5B
Impinger rinse 68 (Top)
XAD-2~(Bottom)
XAD-2
XAD-2
XAD-2
XAD-2
XAD-2 (Top)
Impinger -inse IB
Impinger rinse 28
Impinger rinse 3B
Impinger rinse 4B
Impinger rinse 5B
Impinger rinse 63
No sample
XAD-2 (Bottom)
XAD-2
XAD-2
XAD-2
XAD-2
Impinger rinse Bl
Impinger rinse B2
Impinger rinse B3
Test No. 4, 11-19-30
1147 to 1317
Test No. 5, 11-19-80
1425 to 1508
Impinger contents, test No. 5
11-19-80
Impinger contents, test No. 6
11-19-80
Test No. 6, 11-19-80
1536 to 1645
Impinger contents, test No. 7
Test No. 8, 11-20-80
0811 to 1111
Test No. 8, 11-20-80
151
-------
TABLE B-4. Continued
Sample No.
48
49
50
B16
617
B18
B19
B20
B21
B22
51
52
53
54
55
56
CIO
Cll
C12
CIS
C14
CIS
57
58
59
60
61
62
63
64
65
66
67
68
C16
C17
C18
C19
C20
C21
C22
C23
B26
B29
Impinger rinse B4
Impinger rinse B5
Impinger rinse B6
XAD-2~(Top)
XAD-2 (Bottom)
XAD-2
XAD-2
XAD-2
XAD-2
XAD-2 (Top)
Impinger rinse IB
Impinger rinse 28
Impinger rinse 3B
Impinger rinse 4B
Impinger \ inse 5B
Impinger rinse 6B
Tenax Trap (Bottom)
Tenax Trap
Tenax Trap
Tenax Trap
Tenax Trap
Tenax Trap (Top)
Impinger rinse (Bottom)
Impinger rinse
Impinger rinse
Impinger rinse
Impinger rinse
Impiger rinse (Top)
Impinger rinse (Bottom)
Impnger rinse
Impinger rinse
Impinger rinse
Impinger rinse
Impinger rinse (Top)
Tenax Trap (Bottom)
Tenax Trap
Tenax Trap
Tenax Trap
Tenax Trap
Tenax Trap (Top)
Tenax blank
Tenax blank
XAD-2 blank
XAC-2 blank
Test No. 9, 11-20-80
1137 to 1237
Test No. 10, 11-20-80
1319 to 1521
Test No. 10, 11-20-80
Test No. 11, 11-20-80
Test No. 11, 11-20-80
1544 to 1744
152
-------
TABLE 6-4. Concluded
Sample No.
100
101
102
103
104
105
106
107
108
109
110
111
112
2 x 113
2 x 114
2 x 115
116
117
118
119
120
121
2 x 122
2 x 123
Sample Log Wastewater and Sludge
Pond sludge 11-2-30 (0830)
Pond sludge 11-2-80 (0330)
Pond sludge 11-2-80 (0830)
Pond wastewater (pump discharge) 11-2-80 (0830)
Pond wastewater (pump discharge) 11-2-80 (0830)
Pond wastewater (pump discharge) 11-2-80 (0830)
Sludge spray pond 11-19-80 (1215)
Pond grab sample (surface) 11-19-80 (1015)
Pond wastewater (pump discharge) 11-19-80 (1045)
Pond sludge (5 ft from edge 11-19-80 (1215)
Farmers pond (bottom core sample) 11-19-30 (1000)
Farmers pond (behind RR tracks) 11-19-80 (0145)
Farmers field (3-part core soil sample) 11-19-80 (1050)
Farmers ponr1 VOA
Pond VOA (pump discharge) 11-19-80 (1045)
Pond VOA (surface water) 11-20-80 (0820)
Floe tank sludge to drying bed 1-19-80 Plant 0
Aeration tank afer floe tank 1-19-80 Plant 0
Condenser pond before Hoc tank 1-19-80 Plant D
Condenser pond VOA Plant D
Aeration tank VOA Plant D
Sludge VOA Plant D
Wastewater from separator 11-20-80 (0930) PCP
Wastewater before pond 11-20-80 (0910)
153
-------
Samples A9, All, A13, A19, Al, A6, A21, A23, and A25 were analyzed for
phenols and polynuclear aromatics. All results except for the following were
negative. The detection limit was 1 ug collected for all samples.
Sample A9 All A\_
Pentachlorophenol 41 5.2 4.0
Fluoranthene 1.4 1 1
Pyrene 1.1 1 1
Phenanthrene 1.7 1 1
Figure B-I4 is a representative chromatogram from a U-tube extract.
XAD Cartridges
Samples Bl, B2, B3, B5, B7, B9, [ill, B14, B16, B18T 820, B22, 826, and
B29 were extracted and analyzed for phenols and polynuclear aromatics. No
compounds were detected to a detection limit of 1 ug. The detection limit for
naphthalene in these samples is 10 ug due to a minor contamination of the
XAD-2. Figures B-15 and B-16 compare the chromatograms from an XAD-2 blank
and a sample.
Tenax Traps
All Tenax traps Cl through C23 were analyzed for benzene, toluene, and
ethylbenzene. These compounds were not detected in any samples. Due to a low
level of Tenax contamination, the detection limits were 0.7 ug for each of
these compounds.
Waters, Sludges, and Soils
These samples were analyzed for volatile aromatics, phenols, and
polynuclear aromatics as listed in Tables B-5 and B-6. Figure B-17 is a
typical chromatogram for a volatiles analysis. Figure C-18 is a ch-omotogram
for a pond sludge extract.
The comoosite pond water sample (Field I.D. 103+104+105 and lab I.D.
80-11-043-83) was also analyzed for oil ano grease by standard methods. The
measured value was 160 yg/1.
Impinger Catches
Impinger catch samples were composited as follows:
« Sample 1 - Sample 6
ii Sample 7 + Sample 20
154
-------
RIC DATA: BNA43I4 HI
91/88/81 15s 16:98 CfiLIt C810381B HI
SAMPLE: 680-11-043-14 A-2 IU=TOTAL FU=.5 HJL=28NG 03,10,12
RANGE: G 1,2200 LABEL: N 0, 4.0 QUAN: A 0, 1.0 BASE: U 20, 3
SCANS 100 TO 2290
RIC
1662970.
>s , - '
H ft .
k H J\ MUK
500 innn ic,oo 2000
&:2C' lb:JO 25:00 2 3: 20
SCAU
TIME
Figure 8-14. Total ion current chromatogram U-tube extract.
-------
RIC
81/19/81 15:29:68
SftflPLE: A88-1(-843-34 69 !UL=2WG 08, IP, 12
RANGE: G 1,2208 LABEL: N 8, 4.8 GHJAN:
DATA: BHA4334 HI
CAL1: ('.0110316 t)2
ft 0, 1.8 EASE: U 20, 3
SCANS 188 TO 2200
i80.e-
2015230.
RIC
en
en
U
8:20
IbHO
Tf M(J
TTTF
Figure B-15. Chrornatogram from XAD-2 sample.
-------
RIC
81/12/81 17:55:09
DATA: BHA43<7B *1
CfU.1: Cfill2PlA «3
SCftNS 100 TO 2208
SAKPLE: AS0-11-643-47 B2b BLANK 1UL=20NG 08,18,12
RANGE: G 1,2298 LABEL: H fl. 4.0 QCW: A 8, 1.8
BASE: U 20, 3
RIC
875529.
WjyL4ii
'II I
.'1 ^L'-.^.^
500
8:20
IF.: 4'1
TIME
Figure B-16. Chronatogram from an XAD-2 blank.
157
-------
TABLE 8-5.
HOOD PRESERVING TEST RESULTS
TEST SITE:
TEST Spray Pond Samples
TEST DATE
COMPOUND Acurex I.D. *
A80-11-043
Description
Tentacnloropneno i
Phenol ,
Fluoranthene
Naphthalene
Ben?o(a)anthracene
Benzo(a)pyrene
Benzofluoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(a,h)anthracene
Indenc(l ,2,3-cd)pyrenc
Pyrene
Benzene
Toluene
Ethyl benzene
00-102+109
-80
_omposite i-.luc
5,000
<50
5800
1500
2600
20
87
2000
230
1700
67
5600
9000
<50
85
4400
NA
NA
NA
103-105
-83
qe Comp.Wat
15
<0.1
3.0
4.0
0.4
<0.1
0.1
0.6
0.1
0.7
<0.1
1.7
6.4
<0.1
<0.1
1.6
NA
NA
NA
107
-87
2r Pond Wat
2.2
<0.1
5.7
6.3
1.4
0.1
0.5
1.6
0.3
1.6
<0.1
3.7
12
<0.1
<0.1
2.9
NA
NA
NA
108
-88
r Pond At Purm
16
<0.1
2.7
2.3
4.5
<0.1
0.1
6.2
0.1
0.7
<0.1
2.C
7.4
<0.1
<0.1
1.1
NA
NA
NA
All concentrations 1n units of micrograms per gram except for XAD collections
which are tot.al milligrams collected.
158
-------
TABLE 8-6.
HQODJRESERVING TEST RESULTS
TEST SITE:AUbJna-
T E S T
TEST DATE
Field I.D.
COMPOUND Acurex I.D. *
AEO-11-043
Descri Dtion
PentAclrt6rop1.enc>1
Phenol ..
Fluoranthene
N-iphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzofluoranthenes
Chrysene
Acenaphthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(a ,h)anthracene
Indeno( 1 , 2 , 3- cd ) pyrene
Pyrene
Benzene
Toluene
Ethyl benzene
122
-97
Vastewater
790
17
41
66
<10
<10
<10
<10
<10
<10
<10
58
24
<10
<10
21
NA
NA
NA
123
-98
Wastcwater
1160
48
23
120
<10
<10
<10
<10
<10
17
<10
22
67
<10
<10
15
NA
NA
NA
114
-100
Spray Pond
NA
0.015
<0.005
<0.005
its
-101
Pond Pump
NA
0.015
0.040
<0.005
All concentrations ''n units of micrograms per gram except for XAD collections
which are total milligrams collected.
159
-------
PIC
12/29/81
Sample: Pond VOA N0115
Range G 1,600
« I
i ..I
. Internal
"i standard
Figure 8-17. Volatile analysis chromatogram.
0*
160
-------
RIC CATA: D
01/M/fli 12:23:89 CALI: i>3114olH tt
SAfPLE: Ai-e-lt-*W3-S« OUPL.OF^IO 1UL=2(WG D3,U3,12
: G t,2280 LA6£L: M 8, 4.0 CHjMtC. A 0, 1.6 Pft^E: 0 W, 3
SCwttS !feJ TO 220?
RIC
/i
i*
ill! i
|'f '
M;
M
l:»)
,
fl
U,,"»
Il'C'O
^igure B-18. Total ion current trace of pond sludge extract,
C/H,"
161
-------
« Sample 8 - Sample 13
Sample 14 Sample 19
Sample 21 - Sample 26
tlacr of these composite samples was concentrated and analyzed for phenols and
semi vola ti les. No compounds were measured at the detection limit rif 1 iiq.
Figure 8-19 is a chromacrcgram of a typical irr.pinger extract.
162
-------
iee.c-i
RIC DATA: BNA3125 #1136
81/13/Sl 15:58:69 cftLI: C911381A »3
bftfVLE: ASS-11-643-125 COUP AHAL PRCCI FU=0.5«L 1UL=26HG 03,13.12
RANGE: G \>Z2*Q LABEL: H 9, 4.6 QWlN: A 0, 1.8 BASE: U 20, 3
SCANS 169 TO 22C8
RIC
7S672,
j
WO
1008
IbHO
TIMi:
Figure B-19. Typical chromatogram of ar. impinger extract.
163
-------
APPENDIX C
CHARACTERIZATION OF EMISSIONS AND RESIDUES FROM THE DISPOSAL
OF WOOD PRESERVING WASTES IN NONFOSSIL FUEL BOILER
The handwritten raw data for this study has been compiled and is
available upon request. That data covers preliminary and isokinetic source
emission sampling, total n.ydrocarbon determination, and specific
low-molecular- weight hydrocaroon determinations. Copies may be obtained from
EPA-IERL-Ci L'6 W. St. Clair Street, Cincinnati, OH 45268 (513/681-4227).
The scope of this program focused on the gaseous emissions discharged
from the stack, and the ash streams which result during combustion and
pollution control.
Material balance estimates were difficult since ash and fuel flowrates
were not metered by the operator. Estimates were made of each s'ream and the
appropriate material balance evaluation of the destruction and removal
efficiency performed (See Section 7).
C-i. TEST SITE
Table C-l presents a summary of ti.e total production during the field
test period.
TABLE C-l. SUMMARY OF TREATED WOOD PRODUCTION FOR THE PERIOD
JULY 21 THROUGH JULY 25, 1980
Treatment
Product
Penta P^nta Fire
heavy oil light oil Creosote CCA* retardant**
m3 ft3 m3 ft3 m3 ft3 m3 ft3 m3 ft3
Utility Poles 255 7962 76.8 2712 1.0 37
Pil ings
Lumber
Plywood
30.8 10S8 199 7044 11.3 400
12.5 440 52.7 1860 49.6 1753 186 6583 48. C 1717
27.2 962
CM Copper chromate arsenate (waterborne)
Waterborne formulation
164
-------
C.2 FIELD TEST PROGRAM
The sampling program and collection matrix is presented in section 7
and Table 7-1. The following subsections describe the equipment and
techniques employed during sampling.
C.2.1 Preliminary Measurements
Preliminary gas characteristics were determined using EPA Methods 1
through 4 (Federal Register, Volume 42, No. 160, August 18, 1977). Using
these criteria, tne required number of sampling points was established. With
the boiler operating under normal load conditions, two traverses were
conducted at ricnt angles to one another on the south stack (No. 2).
Figure C-l presents a schematic of the stack cross section and traverse point
locations. Gas velocity measurements were taken ucing a calibrated 6-ft
S-type pitot tube connected to a 0- to 1-inch Magnehelic Series 200 gauge
manufactured by Dwyer Instruments Company, Michigan City, Indiana. Exit gas
temperatures were measured using a Chromel-Alumel (Type K) thermocouple and a
diaital thermal indicator manufactured by Doric Incorporated. Table C-Z
presents a summary of the velocity/temperature profile data.
TABLE C-2. SENARY OF VELOCITY/TEMPERATURE PROFILE DATA FOR SOUTH STACK
South port East port
AP \
Lv. -cion cm
1 .99
2 1.30
3 1.40
4 1.50
5 1.55
6 1.65
7 1.63
8 1.63
9 1.52
10 1.35
-1,0
inches
0.39
0.51
0.55
0.59
0.61
0.65
0.64
0.64
0.60
0.53
Temperature
C° F°
120
131
141
163
16o
174
175
177
178
180
248
268
286
325
335
345
347
351
353
355
AP f
cm
1.42
1.09
1.37
1.52
1.65
1.80
1.88
1.90
1.88
1.73
inches
0.56
0.43
0.54
0.60
0.65
0.71
0.74
0.75
0.74
0.68
Temperature
C° F°
142
142
159
174
131
180'
182
is:3
184
184
290
290
319
346
357
3f5
359
362
363
364
165
-------
Sampling Locations
Traverse Point Number
South Port East Port
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
IB
19
20
Location fron Inside Stack Wall
2-7/6
4-3/16
6-3/4
10-1/4
19-3/4
23-3/16
25-5/8
27-1/2
29-3/16
Norti
ports
t 5
3D"
_L
j
Figure C-l. Schematic cf traverse point locations, south stack, no. ?.
166
-------
Preliminary gas moisture content was calculated using nolychrcmetric
data. Successive moisture values, as determined during t.ne actual test runs,
then were used to update the preliminary calculated values. Exit gas
molecular weight was c'ternined by standard orsat analysis before and after
each test run. The ra-' data collected in the field are not presented in this
report, but can be obtained as described above.
C.2.2 Isokinetic Source Sampling of Boiler Flue Gas
Sampling of high-rnolecular-weight organic emissions from the outlet
stack was performed using the EPA Method 5 isokinetic sampling train as shown
in Figure C-2. The train consists of an in-stack filter, a heated glass-lined
probe, an XAD-2 polymer sorbent trap and impingers. The first impinger, a
modified Greenburg-Smith (without an impaction plate), was empty, followed by
an XAD-2 polymer sorbent trap and a Greenburg-Smith impinger charged with
100 ml of 30-percent hydrogen peroxide. The third impinger was also an empty
modified Greenbjrg-Smith, followed by a silicon dioxide drying trap to protect
the vacuum pump and sampling module from moisture. Figure C-3 presents a
photograph of the sampling train in sampling position on the south stack.
For each isokinetic source test, a sample was drawn from the fan outlet
(at a predetermined constant velocity point) through a probe fitted with the
appropriately sized nozzle. Four complete sets of samples were collected.
All sampling was conducted during normal boiler operation. Table C-3 presents
a summary of the pertinent isokinetic source test parameters.
At the completion of source sampling, the sample train and probes were
transported to a field laboratory. Samples were transferred from the sample
trains to specially cleaned and labeled storage containers. The probe nozzle,
probe, and connecting lines were cleaned also and recovered samples were
transferred t^ the appropriate storage containers. Immediately following
sample recovery, all samples were iced in the field and maintained under those
conditions during transport to the analytical laboratory.
C.2.3 Total Hydrocarbon Determination of Boiler Flue Gas
A Moael 400 total hydrocarbon analyzer (THC) manufactured by Beckman
Instruments of Fuil3rton, California, was used to continuously monitor total
hydrocarbons in the sampled gas stream at the south stack. This analyzer uses
the flame ionization detection (FID) method. The analyzer output was recorded
using a Model 58^ strip chart recorder manufactured by Linear Instruments
Corporation, Irvine, California.
The FID was operated using zero grade 1.0 hydrogen fuel and zero grade
air supplied by Airco Industrial Gases, Santa Clara, California. Hydrogen
fuel and zero air pressure were set at 207 kPa (30 psi) and 104 kPs (15 psi),
respectively, usinn internal differential pressure regulators in the analyzer.
Sampling was conducted using the system shown in Figure C-4. The g=
-------
Heated Teflon sampling li
I
XAD-2 trap
Dry gas meter control module
Empty
Gas meter thermocouples
Tine adjustment
byoass valve
Ice/water
bath
Impinger
thermor.oi.p1e
SiOj trap
Vacuum line
Vacuum gsge
I
Coarse adjustmpnt valve
Airtight vacuum pump j
Orifice
Hagneheltc
Gage
Dry test meter
J
Figure C-2. 5chematic diagram of an XAD-2 iiigh-ir.olecular-weight
nass particulate sampling train.
168
-------
^^^^H^^UBMMHI^Bi^BH^HH
Figure C-3. Modified EPA Method 5 sampling train in sampling position
on south stack.
169
-------
7y-> sintered stainless steel filter
r
O.OW in stainless steel probe
*»- To stack
Tnree-*ay stainless steel solenoid valve
^eat traced Teflon sample line (30.46m)
£
1 Teflon
~s .
n
J?
* / / f~ /
^. f
diaphragrr vacuum pump
.' / / .f j' .r J* ,' y ,r
^ 7 s ' s - -'-*'/,-',-
7 .' t
' b
\
\A *4j 2 ml injection
MJ lYI 1 -OOP and
L.
J
Unburned
hydrocarbon
analyzer
(FJD)
Strip
chart
recorder
<
rv
k.
«3
O
u
tJ
M <
rf
0>
3
*-
CS;
3_
L
up
^X C
bacKl
Ctrorr.atOOT'arh
I
1
r ; L/.
Strip
Chart
recorder
M <
k.
^
o
u.
1L
^-,
H
H C
i£
C
3
^~
(\
a
i
r 1
(^
l>
C
L,
L
LJ
g_i
X
ush vaU-r
<
n
^H
CalIbration
gases
Figure C-4, Schematic of unburned hydrocargon and gas clu-omatograph
saiTpling system.
-------
TABLE C-3. SUMMARY OF ISOKINETIC SOURCE TEST PARAMETERS
Test
no.
)
2
1
4
Pate
7/23/80
7/23/80
7/?1/90
7/?5/80
Test period
(24-hr clock)
1000-1600
0850-1450
0850-1450
0800-1350
Sample
time
(min)
360
350
360
350
Barometric
pressure
(inches Hg)
30.57
30.00
30.69
30.75
Sample
volume
(scf)
12.79
17.34
25.81
30.64
Average
stack gas
temp (°f)
318.9
331.1
312.0
367.4
Molecular
weight
(Ib/lb mole dry)
29.29
29.28
29.43
29.37
Percent
moisture
12
7.?
5.0
7.9
Percent
1sot< inetic
98
100.4
100
105.3
-------
Ohio. The filter removed fine participates which, if allowed to pass into the
THC analyzer, c^.uld ucclude the FID sample inlet capillary. A 0.006m O.D.
stainless steel probe connected the filter unit to the heated sampling line
via a th.-'ee-way stainless steel solenoid valve. This valve allowed the
introduction of sample gas or calioration gas depending on which mode of
operation was desired. A 12.2m, heated-traced, 0.01m O.D. Teflon sample line
manufactured by Technical Heaters, Inc. of San Fernando, California, was used
to transport, the sample to the vacuum p'jmp. Sample line temperature
controllers were supplied by the manufacturer. A Teflon-coated diaphragm,
vacuum pump IP vuf actured oy Thomas Industries of Sheboygan, Wisconsin, was
used to pull . >° sample through the lines. From the gas vacuum pump exit, the
sample was split and routed to the analyzers via short lengths of heated
Teflon line.
Prior to operation and calibration, the completed sampling system was
operated at approximately 297°K above normal sampling and calibration
conditions, and was purged for several hours with zero nitrogen to remove any
traces of residual hydrocarbon contamination in the lines. During this
"bake-out" procedure, stainless steel tube unions, filters, and probes were
heated using a propane torch. Before and after each test, a leak test was
performed on the sampling system, followed by calibration of the THC analyzer
using zero nitrogen (<0.5 HC) and a mixture of 535 ppm methune in nitrogen.
During calibration, the three-way valve was positioned to block the sample
probe and filter, allowing the calibration gas to pass into the heat-traced
sample line. Introducing the calibration gases at this location ensured the
sample gases and calibrations gases were treated in the same manner,
nullifying possible undesirable effects due to absorption or wall loss in the
sampling line and system.
C.2-4 Specific Low-Molecular-Weight Hydrocarbon Determination of Flue Gas
Periodically, benzene, toluene, and ethylbenzene concentrations were
determined in the boiler flue gas. Small portions of the sampled gas routed
to the total hydrocarbon monitoring system was diverted and injected into a
Varian Model 3700 gas chrematograph (GC) fitted with an FID. Figure C-4
depicts the sampling system. Using a sample valve fitted with a 2-cm3
injection loop, the sample was injected into a 6-ft x 1/8-in O.D. stainless
steel column packed with I percent SP100 on Carbopack (80/100) mesh.
Calibration standards for the compounds of interest were prepared
onsite using a 501 Teflon bag and the methods outlined in "Evaluation of
Emission Test Methods for Kalogenated Hydrocarbons," (Vol. I, EPA-600/
4-79-025, March 1979). Table C-4 presents the results of the analysis and a
chronology of sampling/injection time during the field testing period.
Resultant chromatographs indicate that the components of interest were
not detected at concentrations less than 0.1 ppm in the sampled gas. These
data are in close agreement with previously presented data for the total
hydrocarbon analysis.
172
-------
TABLE C-4. SUGARY OF SPECIFIC LOW MOLECULAR WEIGHT HYDROCARBONS
HETERMiNAT IONS OE FLUE GAS
Date
7-21-80
7-22-30
7-23-80
7-24-80
7-25-80
Time
1623
1044
10r->5
1110
1548
0944
1100
1304
1319
1336
1342
1349
1426
1507
1040
1113
1130
1240
1215
1400
1415
1430
1449
0323
0845
0913
0940
100C
1015
1125
1201
1206
Procedure
Injection calibration standards
Inject flue gas sample
Inject flue qas samole
In ect zero gas
Inject flue gas sample
Inject flue gas sample
Inject flue gas sample
In ect flue gas sample
Inject flue gas sample
In ect calibration standards
Inject flue gas sample
In ect flue gas sample
Inject flue gas sample
In ect flue gas sample
Inject calibration standard
Inject calibration standard
Inject calibration standard
Inject flue gas sample
Inject zero qas
In ect calibration standard
Inject calibration standard
Inject calibration standard
Inject flue gas sample
In ect calibration standard
Inject calioratior. standard
In ect flue gas sample
Inject zero qas
In ect flue gas sample
Inject C}-Cg calibration standard
Inject Ci-i,'g calibration standard
In ect flue yas sainple
Inject flue qas sample
Results*
<0.1 ppm
<0.1 ppm
<0.01 ppm
<0.01 opm
<0.01 ppm
<0.01 ppm
<0.0l ppm
<0.01 ppm
<0.01 ppm
<0.01 ppm
<0.1 ppm
<0.01 ppm
__
<0.01 ppm
<0.01 ppm
<0.01 ppm
<0.01 ppm
Concentration of sought components
173
-------
C.2.5 Composite Sampling
Composite samples of the rrulticone hopper ash, boiler bottom ash,
wooawaste fuel, and sludge/wastewater wore collected during the field sampling
period. Sampling at these locations was performed at approximate 1-hr
intervals during each test run. Samples were obtained by collecting and
transferring equal bulk aliquocs of the material into precleaned sampl?
storage containers. Figure 7-1 shows the locations of each sampling location.
C.2.6 Grab Sampling
Grab samples of tne baghouse hcpper ash, pre-processing bulk penta in
heavy aromatic treating oil, and bulk creosote were collected during the field
sampling. Bughouse No. 2 hopper ash samples were collected at the end of each
test run when the hoppers were emptied. Grab samples of the penta and
creosote treating formulations were supplied by plant personnel.
C.3 ANALYTICAL METHODS AND RESULTS
Samples from the boiler test site were recei ^d on July 29, 1980. The
samples were assigned corrective laboratory identif 'cation numbers and stored
at 4°C until analyzed.
C.3.1 Analytical Methods
Analyses were conducted for volatile organics, semivolati le organics
and metals. Volatile organics analyses were based on variations to EPA
Method 62'1. Semwolatile organics (phenols and polynuclear arornatics)
analyses were based on sample preparation variations to EPA Method 625 in
conjunction with fused silica capillary column GC/MS. Metals analyses were
conducted using standard atomic absorption techniques.
Analysis of Volatile Organics
The analytes of interest were benzene, toluene, and ethylbenzene. Only
the sludge samples were analyzed tor these components.
A l.Og aliquot of the mixed sludge was weighed into a 15-ml crimp top
vial. Pentane (9 ml) and l-bromo-2-chloropropane (10 pg) were added as
internal ctandards. A 1-ul aliquot of this deluted sample was injected in a
0.2-percent Carbowax 1500 on a Carbopack C packed gas GC in a Finnegan 1020
GC/MS instrument. Analysis and q-janti tat ion were conducted per EPA Method 524
using the internal standard method.
Quality control for the volatiles analyses entailed the analyses of a
method blank, and a method stanaard spiked at 10 ng/g of sludge.
Analysis of Semivoiatile Organics
Semivolatile organics analyzed are Msted in Table C-5. These analyses
were conducted by v riations to EPA Method 625 in the sample preparation and
the use of fused silicon capillary column GC/MS to determine these compounds.
174
-------
TABLE C-S. SEMIVOLATILE ORGA'JICS ANALYSED III V.'OOD PRESERVING SAMPLES
Compound Number Compound Name
I Phenol
2 2-Nitrophenol
3 2,4 Dichloropheho:
4 2,4,6 Trichlorophenol
5 4-Nitrophenol
6 4,6-Dinitro-o-cresol
7 Penta
8 Acenaphthene
9 Fluoranthene
10 Napthalene
li Benz(a)anthracene
12 Chrysene
13 Acenaphthylene
14 Phenanthrene
15 Fluorene
16 Pyrent
17 Anthracene
175
-------
Sample Preparation
The sludge sampler were prepared as follows:
1. Place 10. Og of the sludge in * clean 250-ml browf buttle, f-
10. Oq of anhydrous sodium si:1, at.? and 100 ml of pesticide grade
dichloro^lhane. Shack occassional ly ano allow to sit overnight ct
room .cmperatiir 2.
2. Take 1.0 ml of each extract for GC/FIO screening. Stan the
remaining ext'Ll2 weticd towel, and the contents transferred to a
preextracted coxhlet thimble. The XAO-2 material in the Soxhlet was spikcc'
with surrogate mix and extracted overnight with CH^CI^- The e/tract was
concentrated to 1 to 100 ml based on the amount of extractable material
prssent.
Quality control for XAD-2 samples consisted of the analysis of
surrogate spiK°s, field blanks and spiked method h!o'ks.
Ash Samples-
20. Og of tne flyash were placed in a clean Soxhlet thimble, then spkt-d
with surrogates at concentrations i saniple /^as extracted »vHh
CH^C^ overnight and concentrated to 1.0 ml. Puality control for ash
samples consisted of the use of surrogate spikes and the analysis of a iiethod
blank and a spiked sample.
Extract Analysis
Each of the extracts obtained as described in the previous sections
were analyzed for the compounds listed in Table C-5 using fused silica
capillary column GC/MS. The instrumental operating conditions are listed in
Tuble C-6.
The quality control requirements listed in ^PA Method 625
followed, including analytical calibration, mass spectrometer tuning to meet
decaf luorotuphe-nylphospline (DFT?P) criteria, and the use of ti;
-------
ICg sample
Dry (Ni-,50.)
and extract with
10 fold CH2C12
Screen dilute
extract by
GC/FID
All peaks
in linear
GC/MS range?
Proceed to FSCC
analysis
Greatest peak
greater than
500 ug/ml?
Dilute
extract x 100
All peats
less than
Concentrate
extract x 100
Figure C-5. Analysis scheme for ohenols/PAH s in wood
preserving sludqos.
177
-------
TABLE C-6. FUSED SILICA CAPILLARY COLU: N PARAMETERS
Column:
30-n x 0.2£m SE-54 KCOT (J & W Scientific)
Splitless Injection Parameters:
Injection node: Splitless
Sweep initiation: 30 sec
Sweep flow: >12 ml/min
Colu-nn flow (He)
measured at
atmospheric: 1.0 ml/min
Interface:
Temperature: 100°C
directly coupled to source (no transfer lines)
Progra.T,:
Initial: 30°C for 2 min
Program: Ranp to 300°C o 10°C/min
Hold: 300°C, 15 min
Mass Spectral Parameters:
lonization mode/energy: Electron impact/70 eV
Totoal scan time: 1.0 sec
Mass range: 35 to 475 AMU
178
-------
C.3.2 Results and Discussion
The quantitative results for tiie testi'.ci during wood ana vjaste
incineration are given in Tables C--7 to C-9. Day 1 samples were not analyzed.
Volatile Organics
Low Tevels of volatile aromatic hydrocarbons k-.ere detected in croescte
vFigure C-6). These levels are greatly reduced in the waste sludge. The
total hydrocarbon content of the stack gas was 0.01 ppm.
The detected levels of aromatic Hydrocarbon? in the sludge samples were
close to the detection Unit. The reported levels have been corrected for
(rethod blank contribution. The accuracy of the method at these low nar.ogram
levels is poor. Since the injection of organic extracts on the volatilos GC
column led to the accumulation of hiqher-molecular-weigrit aromatics. It was
necessary to back out the column at 200°C after every few analyses.
Semivo". at i le Organics
The application of fused silica capillary column GC/MS to this project
allowed for greatly improved compound identification over that obtainable with
packed column methods. Polynuclear aromatic isomers such as
phenanthrene/anthracene and benzo(a)anthracer>,e/chrys3ne can be resolved by
this method. But the Finnegan 4000 capillary injection system is subject to a
nigh degree of front-to-back discrimination. In the split/splitless mcde of
injection, the sample first is volatilized in the injection port then
reconden~>ed at the head of the column. This process results in a substantial
variation from injection to injection in the fraction of a given component in
the sample placed on the column. An extra degree of random error is
introduced into the determination of early eluting compounds (phenol and
naphthalene) by decreasing the precision of the analysis. To correct for this
effect, the early elutinq compound quantitations were corrected using the
recovery of the surrogate spike, dg-naphthalene.
Figure C-7 is a chromatogram from the analysis of semivolatile organics
in a sludge sample. The major identified peaks are labelled. There are
clearly a large number of organics present in addition to those of interest to
this program. Figure C-8 is a chromatogram from a bottom ash extract. Only
the polynuclear aromatics were detected in ash samples; no phenols were
detected.
Penta and 2-nitrophenol were detected at low but significant levels
only in the samples from days 2 and 3. There is no simple explanation of the
nitrophenol: this compound was never detected in a sludge or ash sample.
Figures C-9 and C-10 are cnromatograms of the day 3 XAD-2 cartridge extract
and an XAO-2 blank cartridge, respectively. They should be contrasted with C7
and 8.
Metals
The results of the metals analyses are shown in Table C-10.
179
-------
TABLE C-7. ANALYTICAL RESULTS FOR TEST PAY 2
Compound
7-^itrophfenol
Penta
Pnenol
F luoranthene
Naphthalene
8enzo(a)anthracene
Eenzo(a)pyrene
fenzof luoranthene***
Chrysene
Achenaphthy lene
Anthracene
Benzo'ghijperylene
Fluorene
Phenanthrene
D i benzo I a, n) anthracene
Indeno(l,2,3-cd)pyrene
Pyrene
Benzene
Toluene
Ethylbenzene
Botto-i
ash-
<0.5
<0.5
<0.1
92
10
7.6
1.4
9.3
1.2
4.4
4.5
<0.5
0.6
24
<0.5
<0.5
29
NA****
NA
NA
Baqhouse
ash"
<1.0
<1.0
<0.f;
0.7
10
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<1.0
<0.5
6.9
<1.0
<1.0
<0.5
NA
NA
NA
Mechanical
hopper ash*
<0.5
<0.5
<0.1
.0.5
10
<0.1
<0.1
<0.i
<0.1
<0.1
<0.1
<0.5
<0.1
0.6
<0.5
<0.5
<0.1
NA
NA
NA
Lludge*
<10
740
1200
2200
1300
160
<20
52
180
120
760
<20
1200
1800
0
<20
1200
1.9
12
17
/Ad**
36
<10
2
-------
C-3. ANALYTICAL RESULTS r'03 TEbT DAY 3
Cc,.,<
2-Nitrophenol
Penta
Pheno'
Ftuoraitnene
Naphthalene
Benzo(a)anthracene
Benzo(a)pyrene
Benzof luoranthene***
Chrysene
Acheniphthylene
Anthracene
Ben:o(ghi)perylene
Fluorene
Phenanthrene
Dibenzo(d,h) anthracene
Incteno (1,2, 3-cd ) py r ene
Pyrene
Benzene
Toluene
Ethyl benzene
Bolter,
ash*
<0.5
<0.5
<0.8
15
18
0.6
0.1
0.9
0.7
3.0
1.0
cO.5
' 0.8
31
<0.5
<0.5
7.9
NA***»
NA
NA
Baqhojse
ash*
<1.0
<1.0
<0.2
0.2
3.9
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<1.0
<0.2
3.0
<1.0
<1.0
<0.3
NA
NA
NA
Mechanic al
hopper ash*
<0.5
<0.5
<0.1
0.6
6.5
<0.1
<0. 1
<0 . 1
<0. 1
<0.1
<0. 1
<0.5
<0.1
0.5
<0.5
<0.5
<0.1
NA
NA
NA
Sludge
<10
260
1000
340
1000
120
<30
64
120
68
250
<20
420
590
<20
<20
310
<1.
3.
5.
* XAD**
74
}?0
<2
3
1100
<1
<5
<5
<1
<1
<1
<5
<1
<1
-------
c-9. A:,ALYTICAL RESULTS FOR TEST DAY 4
Compound
2-Nit-opnenol
Penta
Phenol
Fluorantheie
Kap^thilene
Benzo(a)3nthracene
Ben:o(a)nyrep-e
Benzof luoranthene***
Chrysene
Achen^.phthylene
Anthracene
Benzo(ghi)perylene
Fluorene
Phenaothrene
Di ben*o ( a, h) anthracene
Indeno(l,2,3-cd}pyrene
Pyrene
Benzene
Toluene
Ethylbenzene
Bottc-n
ash*
<0.5
<0.5
<0.6
1.4
9.6
<0.1
<0.1
<0.1
<0.1
<0.1
0.?.
<0.5
<0.1
3.0
<0.5
:0.5
0.4
fiA****
NA
NA.
Baghouse
ash*
<1.0
<1.0
<0.3
6.2
5.1
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<2.5
<0.5
7.3
<2.5
<2.5
<0.5
NA
NA
NA
Mechanical
hopper a^h*
<0.5
<7.4
<0.1
1.7
2.2
<0.1
<0.1
<0.1
0.3
<0.1
0.2
<0.5
<0.1
0.4
<0.5
<0.5
<0.4
NA
NA
NA
Sludge*
-------
RIC DATfl: U0274S II
e9'ie/88 2ei39:eo c^u: i^swee si
SA«PVEi V8274 UOA 1LI INJ
RfiNGEi C I, 358 lft8EU N 8, 4.8 QUANi A 6. 1.8 Bf)cEi U 20, 3
49
SCWS 1 TO 558
468592.
CO
co
RIC
Peak ?60 -- Internal standard
Cont.am
5C9
4-CHpCH, + Cont.
3:15
289
6:39
9:43
16:15
SCAN
Figure C-6. Volatiles analysis of diluted creosote.
-------
RIC
CO
IW.IH
DATA) upeeia *i
I2il3i88 CflCh Cai589A 13
wwis.er-wr-zr s. «.SJL-I»<: 010
c i.2eo9 ueat N e. 4.e QU.WJ A e. i.a BASE: u 20. 3
921
scons iee TO
RIC
388
CD
224
!
, >
9 '
3 i
i !
10
439 8
f
1
;
!
(
1 '
' i
'
:
Si
! 1
H '
!ki
rtlll I
u
JM
5-
j
h
s!
I
1 \
\
3
616
1
Si
, '
111
791
L
a
V*l
$:?9
7
1
M
3J^tJOO
J130 Peaki niriberpd «s per
*
1936
^,
!
ill
table C-B
1
Sil
6
jfr.LiT,.^ IW ,ra
1 1 t- i 1 *- T ' T ' T 1
lf>» IV*} 2W0 SCAM
1^:41} r*'!'X> 5:'<:2rt T!If£
Figure C-7. Toral ion current chromatogram of waste sludge extract.
-------
RIC
fa l.2»»
N e. «.e
OSTAt MP771I »I
CW.lt COTI9"Wi «3
i; 018
A e. j.o BASEI u M. 3
SCONS :«» TO
10
522
14
973
715
354
A
Ail
OT9
9
ner
959
'UN
16
16:48
I.T53
1555 !914
IW3
23:00
SC&S
3;::20 Tint
Figure C-8. Total ion current chromatogram of bottom ash extract.
-------
RIC
99x22^6? 19:22:98
SflMPLEi 67-627-41 B)fH* 8.5UL-I8NC 010
RANCH) C l,?90e Lfieei: H 6, 4.0 OUCH:
416
OftTA: UP2741
CAL1:
9, 1.8 BASE: U
tl
13
SCANS see TO
PIC
CD
O1
2P6
.76154 4.
10
VJ
268
1
i-JLv-JJ
j
/
,i
^.Ji
534
ll
594
U.
712 .
,.ll 1 I. I
1023
liei 1757
H22
2056 SCAN
33:20 TIME
Figure C-9. Total ion current chromatogram of an XAD-2 extract.
-------
oo
i
I98.6-,
RIC
21«
«29
we
HP22R il
Ce91590« 13
Oie,D8. 027-838, XAO BLftW, BH»fl.FV=2.0M
H 8, 4.e OUflH: ft e, I.e BrtSE: U 20, 3
saws iee TO 2eee
783
1317
123904.
16:-!*)
Figure C-10. Total ion current chromatogram from an XAD-2 blank cartridge.
-------
TABLE C-10. METALS ANALYSIS
CD
CO
Bottom ash day 2
BsUcm ash day 3
Bottom ash day *
Baghowse ash day 2
Baghouse ash day 3
Bagnouse ash day 4
Med. hopp«r Bh day 2
Hed. Kopp
-------
C.4 LABORATORY A ANALYTICAL RESULTS
C.4.1 Analytical Methodology
A.
Extraction and Cleanup Procedures
The se-'en samples received for analysis include three different sample
types. Sludge and Penta in Oil may be treated as one type of sample, ash is a
second type, and the blank is a third sample type. Each of these types of
samples required different procedures for extracting the CDDs and COFs.
However, the subsequent steps involved in cleanup of the sample extracts, as
well as the mass spectrometric procedures employed to quantitate the compounds
of interest were common to all samples. The three sample extraction methods
are outlined below, followed by a description of the methods common to all
samples.
1. Sludge and Penta in Oil Samples
a. Place an accurately weighed aliquot (typically Ig) of the sample in
a clean flint glass bottle (Teflon-lined screw cap). Add the
internal standard solution (225 yl of benzene containing 25 ng
37Cl4-2,3,7,8-TCDD and 200 ng 37Ci4_i^,3,4,6,7,8-HpCDD)
add 40 ml of hexane, and agitate to dissolve the sample.
Proceed as outlined in the steps common to all samples listed below.
2. Ash Samples
a. Place an accurately weighed aliquot (typically Ig) of the ash into
a glass extraction thimble, add the internal standard solution
(225 ul benzene containing 25 ng 37Cl4~2,3,7 ,8-TCDD and 200 ng
37Cl4-l,2,3,4,6,7,8-HpCDD) to t.ie sample, and place the thimble
in a Soxhlet extractor.
b. Extract the sample for 16 hours using ber.zene as the extraction
solvent.
c. Concentrate the extract to about 0.5 ml in a stream of prepurified
nitrogen while heating the sample at 55° in a water bath.
d. Quantitatively transfer (using hexane as the transfer solvent) the
concentrate to a clean 125 ml flint glass bottle (Teflon-lined
screw cap), and add additional hexane, so that a total of 40 ml
hexar.e is present in the bottle.
Proceed with the steps common to all samples listed below.
3. Blank Sample
a. Place the internal standard solution into the bottle (225
benzene containing 25 ng 37Cl4-2,3,7,8-TCDD and 200 ng
37ci4-l,2,3,4,6,7,8-HpCDD).
of
169
-------
L. Add aboat 200 ml of hexane to tne bottle and agitate for 5
minutes. Quantitatively transfer uit: hex an .J extract to a clean 125
ml flint glass bottle (Teflon-lined c-cre.v crp) and rinse the blank
bottle with sufficient hexane to obtain a fi-idl volume of 40 ml of
hexane and combine all hexane ext.-acts in the 125 ml flint g^ss
bottle.
Proceed as outlined in the steps common to all samples listed below.
4, Cleanup Procedures Applied to all Sc^ples
a. Extract the organic solution with 50 ml of 20 percent (w/v)
potassium hydroxide by agitating fur 10 minutes. Allow for
complete separation of aqueous and organic layers and remove
aqueous base (bottom) layer to base waste bottle.
b. Extract the organic solution with 50 ml of doubly distilled water
by agitating the sample for 2 minutes. Allcuf time for complete
layer separation and discard the aqueous (bottom) l^yer.
c. Extract the organic solution with 50 ml of concentrated su'ifuric
acid (cautiously adding sulfuric acid) by agitating the sample for
15 minutes. Allow for complete layer separation and discard acid
(bottom) layer into acid waste bottle.
d. Repeat Step 3 until acid layer is nearly transparent.
e. Extract the organic solution with 50 ml of doubly distilled water
by agitating for 2 minutes. Allow for complete separation and
remove aqueous (bottom) layer.
f. Dry the organic layer over sodium sulfate and then quantitatively
transfer a portion of the organic layer to a clean test tube and
reduce the volume to incipient dryness using a stream of
prepurified nitrogen ana while maintaining the test tube in a 55°
water bath.
g. Fabricate a glass Macro-column (20 mm OD x ?10 mm long) tapered to
6 mm 00 on one end. Pack the column with 1.0 g silica, 2.0 g
silica containing 33 percent (w/w) IM NaOH, 1.0 g silica, 4.0 g
silica containing 44 percent (w/w) concentrated, sulfuric acid and
2.0 g silica. Quantitatively transfer tne residue obtained in
Step f to the column with 45 ml hexane. Collect the eluent and
concentrate to 1 to 2 ml in a centrifuge tube.
h. Construct a disposable liquid chromatoqrapny column as follows.
Cut off a Pyrex 5 ml disposable pipet at the 2 ml mark and use the
lower portion of the pipet. Pack the satiU end with a plug of
silanized glass wool. Next add 1 oram of Woelm basic alumina
previously activated overniaht fit i?00°C in a muffle furnace and
placed in a dessicator for 30 minutes just prior to use.
190
-------
i. Using a disposable pipet, transfer the sample onto the liquid
chr (joa to graph y co 1 urn .
j. Rinse the centrif joe tube with 2 consecutive 0.3 ml portions of ?
percent CH^Cl? in hexane, and transfer the rinses to the
alumina column.
k. Eiute tiie column witn 10 ml of 3 percent (v/v) CH^Cl? in h
ana uiscard the eluent (taking care not to let the column run dry).
1. Elute the column with 15 rr,l of 50 percent (v/v) CrbC^ 'n
hexane ard retain the eluent for analysis.
m. Concentrate the solution to approximately 1 ml, using a stream of
prepurified nitrogen as before. Rin^e the centrifuge tube wall
with an additional 1 ml of CHjCl? and reconcentrate.
n. Quantitatively transfer the residue (using methylene chloride) to
two 2 .TI! micro-reaction vessels (one-half of the residue in each
vessel). Tne contents of one vessel are used for CDF
determinations and the contents of the other vessel for CDDs.
o. Evaporate the solution in each of the micro-reaction vessel almost
to cr/r.ess as previously, rinse the walls of each vessel with
approximately 0.5 ml CH^C^, and evaporate contents just to
dryness.
p. Approximately 1 nour oefore GC/Kb (GC/LRMS or GC/HRMS) analysis,
dilute the residue in the micro-reaction vessel with benzene to the
required amount. Gently swirl benzene on portion of vessel to
ensure dissolution of the dioxins.
q. If upon preliminary GC/MS analysis the sample appears to contain
interferences, high performance liquid chromatographic clean-up of
the extract is accomplished at this point prior to further GC/MS
analysis. For HPLC, a Varian Model 5021 instrument is employed
equipped with a DuPont Zorbax-OOS (C-18, reverse phase) column.
See below for further HPLC details.
Gas Chromatograph y/Mass Spectrome tr y Procedures
a. Parameters for Gas Chromatographic-High Resolution Mass
Spectrwictric (GC-HRMS) Analysis of the Extracts.
Instrumentation: Varian 3740 Gas Chromatoqraph coupled through an
AE I silicone mpmbrane separator to a modified AEI
MS- 30 Mass Spectrometer. Modifications to the
MS- 30 include changes in the ESA power supoly to
permit inclusion of a custom built, step-scan
circuit which is driven by a Nicolet 1074 Signal
Averaging Computer, Four masses are rapidly
scanned at t'i<; retention time of the diovin or
furan of interest.
191
-------
Coaaitions for t h_o_Cji' s Cnrc.nat o
-------
Ionizing Voltage: 70 eV
Accelerating Voltage: 4 KV
C. High Performance Liquid Chromatography Procedures
a. Parameters for high performance liquid chromatographic (HPLC)
clean-up of the extracts:
Instrumentation: Varian Model 5021 Microprocessor Controlled High
Performance Chromatograph equipped with CDS-llIl
Data System
Parameters:
Pressure: Minimum: 10 atm
Maximum: 250 atm
Injection Loop: 25 yl
Column: Guard: 35 v Vydac SC Reverse Phase
4.0 cm x 0.4 DTI I.D.
Analytical: 2-DuPont Zcrbax-ODS
25.0 cm x 0.6 cm I.D.
Temperature: Guard Column: Ambient
Analytical Column: 50°C
Detector: Fixed UV: 254 nm, 0.01 A.U.F.S.
Variachrom UV-Vis: TCDD, 235 nm, 0.01 A.U.F.S.
HxCDD, HpCDD, 245 nm, 0.01 A.U.F.S.
Program: Time^
.0
.0
.0
.1
20.0
Code
A
Flow
Event
Event
Event
Value
100 Methanol
2.5 ml/min
Hold
Inject
Reset
193
-------
TABLE C-ll. LIST OF ION MASSES MONITORED USING GC-SELECTED-ION
MONITORING MASS SPFCTROMETRY FOR S'VJJLTANEOUS
DETERMINATION OF MNO-, DI-, 1RI-, TETRA-, PENTA-, HEXA-
HEPTA-, AND OCFA-CHLORINATED DIt!ENZQ-p-DIOXINS AND
OIBENZOFURAf.S
Class of S'uaber of Monitored n/z for
Chlorinated Chlorine Dib«r_iof uract
Diber^odioxin Substitueata Cl2H?-xC'C:^s
or C!ber.:of-jran (X)
Mono- 1 202.019*
204.016
Di- 2 235.980*
237.977
Tri- 3 269.941*
271.938
Tetra- 4 303.902*
305.899
Peuta- 5 337.863*
339.860
Hexa- 6 373.821
375.818
Eepca- 7 407.782
409.779
Octa- 8 441.743
443.740
Monitored o/z for >
Dibenzo-p'dioxins 1
C12«8-«°ZCI* '
<
218.013s
220.011
251. 974°
253.972
285.940*
287.937
319.897*
321.894
327.885b
256.933
1258.930'
353.858*
355.855
389.816
391.813
423.777
425.774
431. 7651"
457.738
459.735
>pproxlraate
rheoreticsl Kitlo
ixpected on Easi*
sf Isotonlcr Abundance
1.00
0.35
1.00
0.69
0.99
1.00
0.74
1.00
0.21
0.20
0.57
1.00
1.00
0.87
1.00
1.00
0.86
1. 00
"Molecular ioo peak.
t'37Cl4-labelled BpCDD standard peak.
c'Ions which csn be monitored in TOD analyses for confirmation purposes.
194
-------
TABLE C-J2. SEQUENCE OF OPERATIONS IN GC/MS (MS-25) ANALYSES 0^
CHLOROOIBENZODIOXINS AND CHLORODIBENZOFIJRANS IN FIRST
INJECTION OF SAMPLE EXTRACT
ELAPSED
TIMK
(HIM)
0.00
1.50
2.00
4.50
5.00
8.00
8.75
9.50
16.00
16.75
25.00
28.00
45.00
60.00
95.00
rVKNT
ln)pctton, uplitlcaa
Turn on apllt valve
Begin temp prof ran to 220*C
Open coluon flow to Maaf Spec.
Start PROGRAM '1
Sweep " 100 pprt
fine on each nu«* 0. 1 5 tec
Colnan re»ch« luothernal hold
Stop PXOCRAM l\
Stare PROGRAM f3
Sweep - 100 ppa
Tim* on each anas 0. 1 5 tec
Stop PROGRAM n
Start PROGRAM #5
Sweep * 12} ppa
Tlasc on pvnta
-------
TABLE C-13. SEQUENCE OF OPERATIONS IN GC/MS (MS-?5) ANALYSES OF
CHLORODIBE'iFOOlOXlNS AN!.) CHLOUODIflENZOFURANS IN SECOND
INJECT 10',' OF SAMPLE EXTRACT
ELAPSED
0.00
1.50
2.
4.50
6.trO
6.00
fl.OO
12.75
24.00
25.00
Zi.OO
45.00
46.00
60.00
70.00
90.00
95.00
RVKNT
Injection, aplltlees
Turn co ^f'llt vjilve
Bef.In te&p prograra to 2JO*C
Open flow to M.ni9 Spec.
Start PKOCRAM it
Swrep llx) ppa
Tl&e on ejch mass " 0,15 eec
Coiuar. rtr on -rtcli WIBO - 0.55 sec
Stop PROCKAM #8
Return to Initial tcrap
CC
COLUMN'
TEMPEKATURK.
190*C
19n°c
202'C
210*C
220*C
220*C
220*C
22fi*C
220*C
225'C
235*c
235'C
235'C
235*C
235'C
TEMPERATURE
KKOCRAH
RATE
(A'C/HIN)
5'C/raln
5*C/mln
5'C/mln
5°C/Din
IONS
MONITORED BY
HASS
(m/z
SPECTROMETER
)
235.980
237.977
251.974
253.972
303.902
305. R99
319. R97
321.894
327.885
373.821
375.818
389. S16
391.813
407.782
409.779
423.777
425.774
431 765
441.743
443.740
457.738
459.735
COMPOUNDS
MONITORED
Cl2 fi'rans
Cl2 furanj
Cl2 dloxlna
Cl2 dloxlns
Cl^ furans
C&4 furane
Cl4 dloxlna
C>4 dloxlna
3?C1 labelled TCDD
Clf, furena
Clfc furans
Cl(, dloxlns
Clfc dloxlns
Cl? furans
Cl? furena
Cl? dloxlns
Cl; dtoxlna
37C1 labelled TCDD
Clg furans
Clg furans
Clg dloxlns
Clg dloxlns
195
-------
C.4.2 Results and Discussion
As indicated in the procedural GC.'MS discussion presented in the
previous pages, two separate gas chromatographic-mass spectromotric methods of
analysis were enp'oyed in this program, one utilizing low resolution gas
chromatography-high resolution mass spectrcmetry (LRGC-HRMS), and the"other
utilizing high resolution gas chromatography-low resolution mass spectrometry
(HRGC-LRMS). Fur determination of total TCDDs in the extracts of the Camples
LRGC-HRMS was emp'oyed. This technique yields essentially unequivocal
quantitative results for the total TCCOs present in the analyte, but does not
yield information regarding the specific TCDD isomers which are present. The
results obtained with this method for the samples are listed in Table C-14.
Both ni/z 320 and m/z 322 (these are nominal masses, actual m/z's monitored
were 319.8966 and 321.8936) were monitored as indicators of TCDD during the
period when TCDDs elute from the gas chromatograph and thus, quantitation of
the TCDDs detected can be based upon the signal observed at either mass. The
theoretical »~atio of m/z 320:m/z 322 resulting from TCDD (based on the known
isotropic abundances of 35ci and 37rj ancj the numbers of Cl substituents
in the molecular ion) is 0.77, and as can be seen from the data, si-ice the
TCDD valuer, calculated from th^ response at each ion mass are reasonably
consistent, the experimentally observed ratio is essentially the same as the
theoretical ratio. This is another criterion which the data should satisfy in
order to certify with confidence that TCDD is indeed detected. Since the mass
at rn/z 327.8846, which arises from the 37Cl4-2,3,7,8~TCDD internal
standard added to all samples prior to processing, was monitored concurrently
with the two masses typical of native TCDDs, and the quantitation of native
TCDDs is actually based upon the ratios of the signals at m/z 320 and m/z 322
to that at m/z 328, the values listed in Table C-14 are inherently "recovery
corrected." This is, of course, one of the chief reasons for utilizing an
internal standard, and results in improved accuracy. The percent recovery of
the internal standard is listed solely for the purpose of illustrating the
overall efficiency of the analytical procedure. Clearly, the recoveries are
generally quite high and the procedures are, therefore, acceptable for
analyses of these samples.
For determnino the concentrations of each of the various classes
(monochlorinated through octachlorinated) of chlorinated dibenzo-p-dioxins and
dibenzofurans in the sample extracts a sophisticated HRGC-LRMS technique was
employed. As indicated in the previous section, a complex computer-controlled
multiple ion monitoring scheme was employed. The compounds in each extract
were quantitated during two separate GC/MS analyses. The chromatographic and
mass spectrometric conditions employed and the ions monitored during the two
GC/MS analyses were given previously in Tables C-12 and 13. These conditions
permit m/z's typical of each class of the CDDs and CDFs to be monitored during
the appropriate time interval corresponding to the gas chromatographic
retention time interval for the various members of a given class. As
expected, the monochlorinated CDDs and monochlorinated CDFs have similar
retention times. However, use of the 50 M (WCOT) fused silica column provides
optimum separation and minimized overlap of individual compounds. It must be
noted that of the 75 possible CDDs and 135 possible CDFs, authentic standards
of only a limited number were available for use in calibration. Most of the
197
-------
TABLE C-14. LOW RESOLUTION GAS CHROMATOGRAPHIC-HIGH RESOLUTION MASS
SPECTHHMETRIC ANALYTICAL RESULTS FOR AfUREX SAMPLES
WSU SAMPLE NO
ACC-11
ACC-12
ACC-13
ACC-14
ACC-15
ACC-16
ACC-17
AOIREX SAMPLE NO.
80-07-02''-3
80-07-027-26
80-07-027-26(29)
80-07-027-43
80-07-027-44
80-07-027-44(45)
blank. Empty Bottle
TOTAL TCDD DETECTED
/i 320 B/Z 322 AVERAGE H.D.C. ng/a
1.1 ppb
0
0
3.7 ppb
0.9 ppb
3.3 ppb
0
1.10 ppb
0
0
3.4 ppb
0.6 ppb
3.3 ppb
0
l.li ppb
0
0
3.4 ppb
0.8 ppb
3.3 ppb
0
0.5
0.2
0.9
0.2
0.2
0.2
0.3
PERCENT
RECOVER**'
121
108
1
24
126
85
135
93
oo
Biiad on
an internal itandtcd prior to «aapl« ptoccoslng.
-------
CDO arid CDi- peaks observed in the analyses of the sample extracts cannot be
assigned to a specific isorer. Thus, in arriving at a quantitative value for
a given class of COOs or CDFs, the areas of the mass chromatographic peaks
appearing at the appropriate retention times, and having the appropriate mass
spectral response, were sunanea and compared to the corresponding area observed
from injection of a known quantity of a calibration standard of the same
class. In general, a single CDO or CDF isomer of each chlorinated group
(i.e. monochlor inated, diclilor inated, etc.1) was used in the calibration
process. Mass chromato grams were obtained in the course of the complete GC-MS
scans resulting from two injections of a mixture of such COO and CDF
standards. The CDO and COF isomers used in obtaining this caliuration data
were 1-chlorodibenzo-p-dioxin; 2,7-dichlorodibenzo-p-dioxin;
1.2,4-tricnlorodibenzo-p-d-ioxin; 2,3,7 ,8-tetrachlorodibenzo-p-dioxin;
3'Cl4-2,3,7,8-tetracnlorodibenzo-p-diox.in;
1,2,3,4,7v8-hexachlorodibenzo-p-dioxin;
1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin, octachlorodibenzo-p-dioxin;
2,4-dichlorodibenzofuran; 1,2,4-trichlorodibenzofuran;
2,3,7,8-pentachlorodibenzofuran; 1,2,4 ,5 ,6 ,7 ,9-hexachlorodibenzofuran; and
octachlorodibenzofuran.
Mass chromatograms resulting from the full GC/MS scan of two injections
of Acurex Sample 80-07-027-43 for all classes of CDDs and COFs are shown in
Figures C-ll through 28. The concentrations of COOs and CDFs in all the
Acurex samples analyzed, determined from similar GC/MS data, are presented in
Section 8.
In the case of the TCQDs, the HRGC-LRMS system was employed to
partially elucidate the identity of the specific TCDD isomers present in each
of the sample extracts orginally found by LRGC-HRMS to contain TCDDs.
Figure C-28 shows the mass chromatograms resulting t'r ; injection of s
calibration standard containing 12 separate TCDD isomers, as well as the
37Cl4-2,3,7,8-TCDD internal standard. Figure C-28 snows the result of
analyzing another calibration mixture containing only 5 isomers and the
37Cl4-2,3,7,8-TCDO internal standard. Finally in Figures C-29 and 30
HRGC-LRMS results for two of the Acurex samples are shown. As can be seen in
Figure C-30 this sample extract apparently contains 4 TCDD isomers (ar well as
the 3^Cl4-2,3,7,8-TCDD internal standard). However, some of these peaks
may be representative of more than one isomer. In fact, some of these peaks
are rather broad, suggesting that other isomers may indeed be present.
Notewofthy is the fact that the 2,3,7,8-isomer is clearly absent in this
sample extract. Finally, as shewn in Figure C-30, five or possibly six TCDD
isomsrs are apparently present in sample a.80-07-027-44(45). Here again some
of the discrete peaks may represent multiple isomers. The results displayed
in Figure 4 suggest that only a trace of the 2,3,7,8-TCDD isomer may be
present in this sample. A summary list of stanoards used by this laboratory
Is given in Table C-15.
C.5 LABORATORY B ANALYSIS
laboratory E received five samples for CDD and COF analysis. As these
samples required extensive cleanup procedures, they are listed separately.
193
-------
204-285
38
>,00 0.19 0,33 9:58 1,18 1.38 1,58 2,18 2,33 2,59 3:19
i i i i i r i i I i i i ii i i , i I i n i i ii i i I i I i i i i i I ll 1 I i I I I I 1 1 I I II I i i I I , Ii i II i i ii i I i I i i i M i i I i ii i . i ' I ll I ,. i i i i i ,
18 29 30
171 1 H |T . M 1 1 .Tp-nn 1 1 1 1 1 1 n 1 1 111 1 1 1 1 1 1 1 1 1 1 H 1 1 ' i ri-n-r,
40 30 60 70 80 30 108
Figure C-ll. Results of HRGC-MS analysis of ash sample 80-07-43
for monochlordibenzofurans.
200
-------
4i^-jv uRUsa SL.HN KtHUKl/ KUh, fl C C 1 3 C B 0 8 1
* 218-219 t 220-221
108
00 0,18 9,38 0,58 1,18 1,38 1,58 2,18 2,38 ?, 59 3,19
I I I I I I Illl I I I Illtl I II I I ll I III I I I ll I I I I I I mini i I i . ii I i , , , I i , , , jini)i.iij_ii t.ilr I I I I I . 1 I
1 1 i [ 1 1 in 1 1 1 1 1 1 1 1 n n 1 1 1 1 n i M 1 1 ij i : 1 1 1 1 1 1 1 1 1 ll I M
13 20 38 40 50 60 78
83 90 100
Figure C-12. Results of HRGC-MS analysis of ash sample 80-07-027-43
for monochlorodibenzo-p-dioxins.
201
-------
-30 WHO oS 3 I, ft N K t P U R T > RUN. OCC120002
235-236 « 237-238
180
8,00 6,38 1,18 1,56 2,38 3, '9 3,39 4,39 3,13 5,59
70
50
28
160*-5629
160V. = 3564
\J\J
, M I , I, I I I I t I
nun i q 11 111 ii 11 111 in ni i[ i; i in 1111. 11 n 11 M[: nil 1111 [ 11 n 1111111 n 1111 M |i IM 111 n j in M 11
23 «9 63 f)8 180 120 140 166 180 280
Figure C-IZ. Results of HRGC-MS analysis of a:h sample 80-07-027-43
for dichlo-"odibenzof urans.
202
-------
* 251-252 « 253-2;,.
0,88 8,38 1,19 1,36 2,38 3,19 3,55 4,39 3,13 5,55 6,48
t Q a , , ,
," " ' " ' ' ! n ' [ ' I " I II 1 " I I ' I I II I I I I I I I i in . ri I i i u , ! i n]j , n |, , , i
re
58
48
38
26
1 8 9:; = 1 71 l
i o e :< = 2 e 4 7
^J
Tjm
28
'""I-"
48
"I '" ""rrpT
68 88
rrpnrn
180
"I""
120
'"I""'1 rTT1'TT"
148 160
ISO 208
Figure C-14. Results of HRGC-MS analysis of ash sample 80-07-027-43
for d^chlorodibenzo-p-dioxins.
203
-------
* 263-278 271-272
19
100
9C
8t
3(
e, 40
1 8 8 :: « 2 1 S 3
i i I
8. 29
18. 01
i:itiirii|irir-
tea ise
-iii]iiiiiiiTi|riiin1~
200 238
380
Figure C-15. Results of HRGC-MS analysis of ash sample 80-07-027-43
for trichlorodibenzofurcns.
204
-------
:35-23S ft 2C7-289
3, 19
1 3 3 -.» 2 ? 1
4, 59
i e
6, <0 3,20 18, 01
I 1 1 ', I A I r . f I t I i i 1 i I t 1 1 1
i i i i i i i i i | i i i i -, i i n i i i i i i i i i i | i i i n i i
ISO ISB 260 250
308
Figure C-16. Results of HRGC-MS analysis of ash sample 80-07-027-43
for trichlorodibenzo-p-dioxins.
205
-------
* 383-384 9 305-306
6:00 !'18 2'33 3,58 5,18 6.38 7,38 9,18
« Q Q
I " " ' ' ' I I I l-lt M I I M ' LLI I I I I t I 1 I I I I 1 I I t I I I I I i i ! I i i I i t i i i i i ,, I i ! i i i i i i i I i i i I i 1 1
1 0 0 V. = 2 4 4
1 0 0 \ - 2 3 9
3i
53
1 I " ' " ' "
100
11 "»'<"' I ""
150 200
'" I » "i" ' I "i "» I ' ' "
250 308 356
Figure C-17. Results of HRGC-MS analysis of ash sample 80-07-027-43
for tetrachlnrodibenzofurans.
206
-------
DS-50 CROS? SCAN REPORT, RUN, ACC4BQ002
» 313-32L « T2I-322 0 327-328
0^00 1:18 2:38 3,53 3,18 6,38 7,38 9,18
I t) 3 | L'_L' I I I 1 1 I I I I I I I I I I I I 1 I 1 I I 1 I I I ! I I I I I I 1 I , , I . , I , I I | I I ! I , , I , I I I I I I I I I I I I I I I I I I I
i 111 11 i i i | i i i i i i i i i j i i i i i i i i i [ i i i i i . i i i | i i i i i i i i i [ i i i i i i i rryn
1 30 108 139 200 253 300 350
Figure C-18. Results of HRGC-MS analysis of ash sample 80-07-027-43
for tetrachlorooibenzo-p-dioxins.
207
-------
a 333-3-40
0-60 1,13 2,38 3, S3 5=18 6,33 7.58 9,18 10.33 11,53 13,18
' 'II I I I I I I II I I I I I II I
11111111111111 i : 11 11111111 11 i [ 11 i 111 i |-| | ii 11 11 i I i j 1111 i; 111 [ 11111 ii 'i.' I 1111111 :1111 1111 i: 11111 ii i 11 i
1 50 100 150 200 250 300 330 400 450 509
Figure C-19. Results of HRGC-MS analysis of ash sample 80-07-027-43
for pentachlorodibenzofurans.
208
-------
i'38 3,5S 3.13 6.38 7.38 9,18 10,33 11,58 13,28
]i 1111 n mm ii i ii i [ 1111 ii i ii 1111 ii 11 ii [i 'i 1111111 ii 111111111 ri'i i n 11 [i 11111 ii i ] 1111 in 11 [i
1 59 180 133 208 250 388 356 *'I6 430 560
Figure C-20. Res-ilts of HRGC-MS analysis of aoh sample 80-07-0^7-43
for pentachlorodibenzo-p-dioxins (resulcs for the
^7Cl4~2,3,7,8-TCOD internal standard are also shown
on lower trace).
209
-------
100
°'80 2,17 4.3S 6,55 9,14 11,33 13=52 16,11
70
'. i-«» I lliuLl^
L'^ *''Yr^^vM//.
50
40
30
200 360 488 580
688
788
Figure C-21. Results of HRGC-MS analysis of ash sample 80-07-027-43
for hexachlorodibenzofurans.
210
-------
* 389-398 * 391-332
100
0, 03 2,17 4,36
7£
6k
3C
1C
6,55 9,14 11,33 13,52 16,11
I I ( I . I I 1 I 1 I I f I I , II ! I 1 I I I . I I I I I 1 1 '
188*=223
2f ^yUv.fV
Vy>V
V ^
I I I I I I I I I [ I I I I I I I I I I I I I I I I I t I I I I 1.1 I I I , I I I I II I I I I I I I I I
1 100 200 3G0 400 500
608 700
Figure C-22. Results of HRGC-MS analysis of ash sample 80-07-027-43
for hexachlorodibenzo-p-dioxins.
211
-------
* 407-488 t 409-418
0'00 2-48 5.38 8,28 11,18 14,08
1 0 8 | i ' ' i ' i i i i I i i ' i i i i i i I . | i i i i i i i I i , i , i , i ,, I , ..... i t .1 1 i i i
IS, 58
.I,,,,
100V.-87
ee
50
18
V'-i"'jV' "
l
I I I I I I 7 I [ I I I , I I I M I I T I I I M I I [ I I I I I I I I I I I I
288 390 400
300 639
Figure C-23. Results of HRGC-MS analysis of ash sample 80-07-027-43
for haptaciilorodibenzofurdns.
212
-------
e.ee 2, js 4,36 6,55 9,15 11.34 13,54 is,13
i i i i i i i i i I i 11 i i i i i t I i i i i i i i i i 11 i i i i i i i 11 11 i i i i i i i I i i i i t t i i i I i 11 i 11 11 i i
' B I ij
5 ipty&£^^
HW.V, "., ^
OCDF Retention Time
6(
5C
2<
I I I I IT I 1 | I I I I I I I I I | I I I I I I I I I | I I I 1 I I I I I | I I . I I I I I I ] i i i i i i i i ifi n i ' i I m i
se 180 _158 290 230 369 338
Figure C-24. Results of HRGC-MS analysis of ash sample 80~07~0?7~-13
for octachlorodibenzofuran.
213
-------
0.00 2,40 3,38 8.28 11,19 14.08 16, 58
1 e0 11.1 i > i i i i i L i i i i i i i i i I 1.1 i . . i i i i I i , . . i i 11 j l i . i i i i . i i j_i_i . i i i i i , I 1.1 i.i
183:: = 211
80
50
SO
J89
203 , 300
333
eee
Figure C-25. Results of HRGC-MS analysis of ash sample 80-07-027-43
for heptachlorodibenzo-p-dioxins (results for the
37Cl^-l,2.3,4,5,7,8-HpCDD internal standard are
shown on center trdco)
214
-------
0.00 2,16 4,36 6,53 9,15 11,34 13,54 11>, 17
i i I i i i i i i I i i i ' i i i i i I i i i i i i i t i I i i i i u i i i I i i i i i i i i i I i i j i i i j i i I i i i i i i i i i I i i i i
180^=1581
180::»1434
78
50
\0
I i i i i i u i [ i ; i r; in I | ) I I I I I 1 i i ( I I I I i I I i . ' ' ' ' ' " I ' ' ' ' ' ' ' ' I ' ' ' ' ' ' ' ' ' I ' ' ' '
1 59 100 150 20^ 250 360 358
Figure C-26. Results of HRGC-MS analysis of ash sample 80-07-02/-43
for octachlorodibenzo-p-dioxin.
215
-------
BS -50 CROSS SCAN REPORT, RUN, VERS6e0Cb
* 256-359 « 319-332 0 327-326
2. 3f
3. 58
5, 19
£, 38
7, 58
9, IS
1C. 38
90
89
70
ee
50
48
38
20
10
1 1 1 1 1 1 1 1 1 t 1 .
100^=1268
,..,-»«
1 0 9 :; = 2 e 3 2
/
i
^-^-^v ->
-1 1 1 1 j t f - 1 1 1 '
I 1
1
f 1
I X
1
1
fl
u
1 I 1
ii i i ! i .
,
3
t
\*^ ,. j
LJ
i i 1 1 1
j
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1
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f
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n
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i/
i
i I i
1
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r
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(till)
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^^
v_
N~ V
Vj
! i i i i t i i t i
TCDD Ti
1. 1.3
2. i.3
3. 1,4
4. 1,3
5. l.J
6. 1,2
12 7, 1,2
a. 1,2
9. 2,3
10. 1,2
11. 1,3
12. 1,2
i
I
1 *'*-'. *.
v__
'II
2S0
300
358
I
480
Figure C-27. Lab A rnultiple-ion mass chromatogranis obtained
for 12 isomer TCDD standard.
216
-------
* 256-2S9 f 315-322 Qx32?-328
2, 38
3,58
5,18
6,38
7,58
9,18
100
18, 38
80
70
56
e-
1 6 9 * =f 1 1 8 5
iee--.-=34i
''1.'(i I'
if
I I I 1 I I I I I I I I I I I I I I
100 ISO
I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I I I
258 300 330 480
Figure C-28. Lab A multiple-ion mass chroir.atograms
obtained for 5-isomer TCDD standard.
217
-------
D.s-50 CROSS sc.-.K REPORT, Ru*. accissaeas
25S-253 * 319-322 0 327-328
3,58 5,18 6.38 7,38 9,18 18,38
I ! I i 1 I I I I I I I I 1 I I ' I '
259
368
350 488
r ?Q I ab A multiple ion mass chromatogram
O *--' " l_ '-*1-' ' ' r nnrt~7nO"7/!O
obtained for Acurex sample a80-0/-02/-43.
218
-------
T5-S9 CROSS SCfl-: REPORT, RUN: ACCISS0097
* 256-253 « 3 lii--322 0 327-328
2, 38
10G
[ i i i I I i I I I | I I I I I i I I I [
400
Finure C-30. Lab A multiple ion mass chromatogr^ms
obtained for Acurex sample a80-07-027-43.
219
-------
TABLE C-15. LIST OF CHLOROOIOXIN AND FURAN ISOMER STANDARDS CURRENTLY
USED AT LABORATORY A
1-Chiorodibenzo-p-dioxin
2-Chlorodibenzo-p-dioxin
2,7-Dichlorodibenzo-p-dioxin
2,3-Dichlorodibenzo-p-dioxin
1,2,4-Trich1orodibenzo-p-dioxin
Tetrachlorodibenzo-p-dioxins all 22 isomers
,3,7,8-Tetrachlorodibenzo-p-dioxin
4-2,3,7,8-Tetrachlorodibenzo-p-dioxin
4-2,3,7,8-Tetrachl orodi benzo-p-di oxi n
1,2,3,7,8-Pentachlorodibenzo-p-diox in
1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin
1,2,3,4,6,7-Hexachlorodibenzo-p-dioxin
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin
3'Cl4-l,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin
Detach 1orodibenzo-p-dioxin
^Cls-Octachlorodibenzo-p-dioxin
2,4-Dichlorodibenzofuran
3,6-Dichlorodibenzofuran
2,8 Dichlorodibenzofuran
1,2,4-Trichlorodibenzofuran
1,2,4,8-Tetrachlorodibenzofuran
2,3,7,8-Tetrachlorodibenzofuran
l.,2,4,7,8-Pentachlorodibenzof uran
1,2,4,6,7,9-Hexachlorodibenzofuran
1,2,3,4,6,8,9-Heptachlorodibenzofuran
Octachlorodibenzofuran
220
-------
c51 Samples 07-027-18 (Flyash) anJ 07-027-10 (Bottom Ash)
These samples were subjected to Soxhlet extraction for 24 hours with
benzene after which the benzene was removed and replaced with petroleum
ether. The petroleum ether we.s then concentrated to about I ml and cleaned up
using a Woelm basic alumina column which was first eluted with 10 ml of 2
percent methylene chloride/hexane and the fraction discarded. The dioxins and
dibenzofurans were then eluted with 50 percent dichloromethane/hexane. This
eluate was concentrated to 200 yl and submitted for analysis.
C.5.2 Samples 11-043-80 and 10-015-3 (Pond Sludges) and 07-027-03 (ENTA)
These samples were shaken with JO percent methylene chloride/hexane and
the sorbent placed on the head of a column (30 cm x 18 mm) which had been wet
packed with 40 ml of Fisher A-540 alumina deactivated with 5 percent 1^0 and
topped with 2 gm of ^SO,;. The column was then eluted with 150 ml of 30
percent methylene chloride in hexane directly into a Kuderna-Danish apparatus
where the column of solvent was reduced to ~20 ml. This extract was then
subjected to washes with 20 percent KOH, water, concentrated sulfuric ac'id and
again, water. The extract was then dried over sodium sulfate and concentrated
to about 1 ml prior to Woelm alumina column chromatography as described above.
The data are presented in Tables C-16 and C-17. On several of the
samples the recoveries for the monochlorodioxin in the spiked samples are
quite low or nonexistent. This is due to the washes with concentrated
sulfuric acid. A cleanup this severe was necessitated since the samples
contained interfering compounds at concentrations many times higher than the
dioxins. Sulfonation has been found to be an effective way of removing many
of the compounds so it was employed even at the risk cf losing the
monochlorodioxin. One other concern arising from the use of such severe
cleanup procedures is the possibility of dioxins being formed by the
cyclization of dioxin precursors by any of several possible mechanisms:
Clx
or the almost quantitative yield of octachlorodibenzodioxin formed directly
from the heating of pentachlorophenol:
ci
Since these samples were all from various wood treating facilities, it was
expected that they could contain pentachlorophenol and various
ortho-chlorophenols in high concentration relative to any dioxins present.
221
-------
TABLE C-16. DIOXINS IN SAMPLES - Ng/g
Sample
07-027-18 (flyash)
07-027-13 Eoike
Spike le'vel
Recovery
Lower detection limit
KCDD
ND
ND
234
-
117
DCDD
ND
51
101
50%
51
T CDD
ND
62
119
C?£
3/C-o
6'J
TCDD
ND
6C
107
56%
54
PCDD
ND
122
223
55%
112
HCDD
ND
237
378
63%
189
H CDD
p
ND
117
217
54%
109
OCDD
ND
312
452
69%
226
07-027-10 (bottom ash) ND
07-027-10 Replicate ND
07-027-10 Spike ND
Spike level 204
Recovery
Lower detection limit 102
11-043-80 (pond sludge)P+B ND
11-043-80 Spike 1142
Spike level 855
Recovery 133%
Solvent blank ND
Lower detection limit 430
10-015-3 (pond sl.idge)
10-015-3 Replicate
10-015-3 Spike
Spike level
Recovery
10-015-3 Spike
Spike level
Recovery
Lower detection limit
07-027-03 (Penta)
P+A
ND
ND
ND
491
482
983
49%
246
ND
ND
45
88
51%
44
ND
325
370
88%
ND
185
ND
ND
275
213
129%
576
426
135%
107
ND
ND
65
104
62%
52
ND
272
435
63%
ND
218
ND
ND
203
250
81%
496
500
99%
125
ND
ND
71
94
7 co,
/ O-&
47
ND
238
391
61%
ND
196
38
148
225
66%
419
450
93%
113
ND
ND
153
195
79%
98
ND
558
816
68%
ND
408
ND
ND
479
469
102%
891
938
95%
235
ND
ND
275
330
83%
165
ND
959
1381
69%
ND
691
ND
ND
756
794
91%
1484
1588
93%
397
ND 298
ND 381
198 420
189 395
104% 105%
95 158
ND 2102
819 259S3
791 1652
103% a
ND ND
396 826
586 2209
491 2060
446 666
455 950
98% a
963 1800
910 1900
106% 95%
228 475
1538 17095 >17095
Recovery not reported since background OCDD present at levels greater
than the spike.
Probably 1,3,6,8-TCDD.
Interferences too large to allow quantitation.
ND = None detected below lower detection limit.
222
-------
TABLE C-17. DIBENZGFURANS IN SAMPLES - Ng/g
Sample mcno
07-027-18 (flvashN
07-027-18 Replicate
07-027-18 Spike
Spike level
Recovery
Lower detection limit
07-027-10 (Dottom ash)
07-027-10 Replicate
07-02"?-10 Spike
Spike level
Recovery
Lower detection limit
11-043-80 (pond rJudge)
11-&43-80 Spike
Spike level *
Recovery
Solvent blank
Lower detection limit
10-015-3 (pond sludge)
10-015-3 Replicate
10-015-3 Spike
Spike level
Recovery
Solvent blank
Lower detection limit
07-027-03 (Penta)
07-027-03 Replicate
07-027-03 Spike
Spike level
Recovery
ND
29
ND
54
-
27
ND
ND
ND
47
-
24
177a
245
330
74%
ND
165
ND
ND
-
330
-
ND
110
255
105
221
429
51%
di
54
64
49
95
51%
48
ND
ND
60
83
72%
42
a
330
590
56%
ND
295
3f5b
319
441
590
75%
ND
197
ND
3547
2992
762
392%
tri
ND
ND
ND
103
_
52
ND
ND
61
90
67%
45
586
383
640
60%
ND
320
ND
ND
278
640
43%
ND
213
ND
ND
2594
824
215%
tetra
ND
ND
ND
67
34
ND
ND
49
53
84%
29
ND
253
410
62%
ND
205
ND
ND
193
410
47%
ND
137
ND
ND
531
533
99%
penta
ND
ND
HD
154
77
ND
ND
119
135
88%
68
ND
628
950
66%
ND
475
ND
ND
459
950
48%
ND
317
929
905
1061
1233
86%
hexa
ND
ND
ND
263
132
ND
ND
213
229
93%
115
ND
1222
1620
/ J-Q
KD
810
ND
ND
738
1620
40%
ND
540
3088
2289
901
2100
43%
hepta
ND
ND
ND
57
_
29
ND
ND
52
49
106%
25
309
279
350
80%
ND
175
ND
ND
173
350
50%
ND
117
3499
2721
-
452C
c
octa
ND
ND
ND
163
163
ND
ND
127
142
S0%
71
294
628
1010
62%
ND
505
ND
ND
364
1010
36%
ND
337
5471
3850
203
1305
c
- __
Interferences.
Isomers other than those used to spike sample.
CRecovery not given since spike levels were significantly below the level
present in the sampls,
ND - None detected below lower detection limit.
223
-------
Th imtia, cleanup step of chromatographing the samples on a neutral alumina
column was included to eliminate- the possibility of artifact formation by
removing the possible precursors prior to acid or base washes.
It was not possible in all :ases to adhere to a strict QA/QC program
due primarily to the inadequate amount of sample received. Whenever possible,
however, QA/QC Method MCR Method no. 7 was followed without exception.
The samples were analyzed using MRC Method no. 1 with the exception
that a 1 percent Dexsil 300 column was substituted for the 3 percent Dexsil
400 column.
In addition, each sample was fortified with 13r -TCDD prior to workup
to serve as an internal standard. 12
C.6 LABORATORY C ANALYSIS
C.6.1 Extraction and Clean-Up Procedures in Flyash Analyses
In a recent publication Lustenhouwer, et al., have compared the
efficiency of various solvents to extract PCDDs and PCDFs from flyash and
other participate matter. The data reported in Table 2, p. 503, clearly shows
that the highest efficiency was found for Soxhlet extraction with toluene on
acid treated material. In an unpublished study Lab C reported that the
temperature of the solvent in the Soxhlet extractor is also of importance, the
efficiency was found to increase with increasing temp.
In the Lab C analyses an extraction procedure based on acid treatment
was used followed by Soxhlet extraction with hot tuluene for 36 hrs. This
should be an optimal procedure for the extraction of PCDDs and PCDFs.
The extraction procedure was followed by a clean-up on an alumina
column resulting in a fraction where PCDDs and PCDFs could be determined
without interferring artifacts.
C.6.2 Separation, Quantification and Confirmation
In the Lab C analyses a 55 m Silar 10 c glass capillary column was used
for the separation of the PCDDs and PCDFs. The lab recently reported using
column to separate 2,3,7,8-tetra-CDD from all other 21 TCDD isomers, thus
allowing an unambigous identification of the highly toxic 2,3,7,8-isomer.
The quantification is based on mass fragmentography and comparison with
calibration curves of kncwn amounts of 2,3,7,8-tetra-CDD, 1,2,3,7,8-hexa-CDD
and octa-CDD, 2,3,7,3-tetra-CDF, 1,2,3,4,7,8,-hexa-CDF and octa CDF-
Positive identification of PCDD and PCDF isomers was based on the
following requirements:
a) Identical retention times with synthetic standards on one (or two)
glass capillary columns.
224
-------
t>) Complete mass-spectra showing the expected chlorine-clusters for
the parent ions and the expected fragmentation.
_ The mass fragnento grams of the plant C ash sample 80-07-027-18 is given
in Figures C-31 and 32. A study of these figures reveals:
a) All the major peaks co-elute with synthetic standards.
b) The possibility of analyzing false positives is very very small,
p < lO-iO.
c) The same pattern of PCDDs is observed as in other "normal" flyash
samples, see Figure C-33. This indicates the same precursors,
namely chlorophenols.
d) 2,3,7,8,-tetra-CDD is a very very minor peak.
e) > 90i of the PCDDs are lower chlorinated congeners than octa-CDD.
f A difference in the pattern of PCDFs is observed compared to other
"normal" flyash samples, see Figure C-34.
In the analytical system used by Lab A a peak from the ash extract is
apparently co-eluting with the authentic 2,3,7,8-TCDD standard.
Lab C personnel believe they can unambiguously separate the
2,3,7,8-isomer from the other 21 isomers. Consequently they have already
performed a deeper study of possible thermal isomerization of 2,3,7,8-TCDD.
Lab C analyses are in disagreement with the Lab A analyses. Figure
C-32 clearly shows that 2,3,7,8-TCDD is not present in these ash samples.
C.fa.3 The Pattern of PCDDs
The same pattern of PCDD is observed in Lab C data as in other European
flyash samples, see Figure C-33. Chlorinated phenols are the precursors to
the PCDDs found in all these samples. Lab C has also observed that more than
90i of the PCDDs are lower chlorinated more than the expected OCDD. This is
due to a nonspecific dechlorination of OCDD previously studied by Rappe et al.
C.6.4 The Pattern of PCDFs
The pattern of PCDFs observed is slightly different than that found in
"normal" flyasii analyses indicating different precursors. In the normal fly
ash PCBs are the major precursors, in the Acurex samples the precursors are
believed to be impurities in the commercial Penta, Figure C-34.
Standard isomers for PCDF's and PCDD's used by Laboratory C included at
least one isomer for each monomer and included 100 individual isomers.
225
-------
IMk»
nM^'l n
iuii j M \':**
i Ii *i V>. l' . :
t)*l
nn
mi
"»
»so'
Fiaure C-31 Laboratory C mass fragmentogram of tetra-, penta-
y ' hexa- and hepta-CDDS from a flyash sample.
226
-------
N
'U
ill
?"«o* i-jo"
J'C^ ^oo"
Figure C-32. Laboratory C mass fragnentogram of tetra-, penta-
hexa- and hepta-CDFS from a flyash sample.
227
-------
Typical
European
Ash
1
/sJLJl
r^/f .TO a
Plant C
Ash
ai*-*"
AUIIt ,
JU
II Hit
.>;j ul
*^
Bit'«
BUI |
O1'«|
n>/e yes
*»/ J3
Figure C-33. Comparison of PCDD in Plant C ash and typical
European incinerator ash.
228
-------
European
Ash
Plant C
Ash
_A
OUTI
1 HKIt
-/. 37?
J
A _A^-
J
i . 1... _,.,i _,..--!
DU
i
if I'll1* »"
ftir
»3
-------